tag:blogger.com,1999:blog-107374422012-01-22T17:08:26.972-08:00Quarknoreply@blogger.comBlogger2891100tag:blogger.com,1999:blog-10737442.post-67788574670624545772012-01-22T16:35:00.000-08:002012-01-22T17:07:36.323-08:00

Shirley HoSince 2000, the three Sloan Digital Sky Surveys (SDSS I, II, III) have surveyed well over a quarter of the night sky and produced the biggest color map of the universe in three dimensions ever. Now scientists at the U.S. Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab) and their SDSS colleagues, working with DOE’s National Energy Research Scientific Computing

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-81071508285184330212012-01-15T22:23:00.000-08:002012-01-16T06:48:45.169-08:00

(From left to right) Magdalena Zych, Fabio Costa, Igor Pikovski, Časlav BruknerAuthors: Magdalena Zych, Fabio Costa, Igor Pikovski, Časlav BruknerAffiliations: Faculty of Physics, University of Vienna, AustriaLink to "Quantum Foundations and Quantum Information Theory" Group >>The unification of quantum mechanics and Einstein's general relativity is one of the most exciting and still open

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-34215904484513345902011-12-25T09:14:00.000-08:002011-12-26T07:02:37.478-08:00

Ian Walmsley (left), Joshua Nunn (right) contempl -ating the universe.Authors: Ian Walmsley and Joshua NunnAffiliation:Clarendon Laboratory, Department of Physics, University of Oxford, UK.More than 70 years ago, Erwin Schrödinger pointed out one (of many) striking features of the quantum mechanics that he’d recently invented: the possibility it allowed for stuff to do things that no one had

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-80112259022758582652011-12-11T11:05:00.000-08:002011-12-12T03:26:05.547-08:00

Ian Spielman (photo courtesy: Joint Quantum Institute, USA)Scientists at the Joint Quantum Institute (JQI, a collaborative enterprise of the 'National Institute of Standards and Technology' and the University of Maryland) have for the first time engineered and detected the presence of high angular momentum collisions between atoms at temperatures close to absolute zero. Previous experiments with

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-36067117109460504202011-11-27T17:17:00.000-08:002011-11-27T17:35:15.454-08:00

Peidong Yang [Photo by Roy Kaltschmidt, Lawrence Berkeley National Laboratory]The question of how many polyhedral nanocrystals of silver can be packed into millimeter-sized supercrystals may not be burning on many lips but the answer holds importance for one of today’s hottest new high-tech fields – plasmonics! Researchers with the U.S. Department of Energy (DOE)’s Lawrence Berkeley National

Quarknoreply@blogger.com2tag:blogger.com,1999:blog-10737442.post-51736150903293075672011-11-20T21:39:00.000-08:002011-11-20T22:05:17.869-08:00

Physicists including Pieter Mumm (shown) used the emiT detector they built at NIST to investigate any potential statistical imbalance between the two natural types of neutron decay [image courtesy: emiT team]Why there is stuff in the universe—more properly, why there is an imbalance between matter and antimatter—is one of the long-standing mysteries of cosmology. A team of researchers working at

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-67456458319019496902011-11-13T08:57:00.000-08:002011-12-25T17:20:08.313-08:00

[From Left to Right] Nathan K. Langford, Sven Ramelow and Robert PrevedelAuthors: Nathan K. Langford, Sven Ramelow and Robert PrevedelAffiliation: Institute for Quantum Optics and Quantum Information (IQOQI), Austria;Vienna Center for Quantum Science and Technology, Faculty of Physics, University of Vienna, AustriaQuantum computing is a fascinating and exciting example of how future technologies

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-11009936474939389272011-11-06T09:28:00.000-08:002011-11-06T10:22:04.672-08:00

Aaron DannerAuthor: Aaron Danner Affiliation: Department of Electrical and Computer Engineering, National University of Singapore, Singapore Birefringence refers to the fact that some materials have more than one refractive index, causing light beams hitting a birefringent material to split into two parts. Since such materials are uncommon, at first glance this may appear to be a rather

Quarknoreply@blogger.com1tag:blogger.com,1999:blog-10737442.post-6670877188189321702011-10-30T10:48:00.000-07:002011-10-30T11:35:28.179-07:00

[From left to right] Ben Sparkes, Mahdi Hosseini, Ping Koy Lam and Ben BuchlerAuthors: Ben Buchler, Mahdi Hosseini, Ben Sparkes, Geoff Campbell and Ping Koy LamAffiliation: ARC Centre for Quantum Computation and Communication Technology, Department of Quantum Science, The Australian National University, Canberra, AustraliaIn the early days of quantum mechanics, the Heisenberg uncertainty

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-61560902059202056142011-10-23T03:40:00.000-07:002011-10-24T07:14:38.873-07:00

Robert PrevedelAuthor: Robert PrevedelAffiliation: Institute for Quantum Computing, University of Waterloo, CanadaIn 1927, Heisenberg [1] showed that, according to quantum theory, one cannot know both the position and the velocity of a particle with arbitrary precision; the more precisely the position is known, the less precisely the momentum can be inferred and vice versa. In other words, the

Quarknoreply@blogger.com1tag:blogger.com,1999:blog-10737442.post-36414490006329152752011-10-16T09:56:00.000-07:002011-10-16T10:11:34.014-07:00

Liyuan Zhang and Igor Zaliznyak at the Center for Functional Nanomaterials, Brookhaven National Laboratory, USABy studying three layers of graphene — sheets of honeycomb-arrayed carbon atoms — stacked in a particular way, scientists at the U.S. Department of Energy’s Brookhaven National Laboratory have discovered a “little universe” populated by a new kind of “quasiparticles” — particle-like

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-26417773466249490702011-10-11T20:48:00.000-07:002011-10-12T21:45:06.663-07:00

[From left to right] Xiao-Ye Xu, Guang-Can Guo, Chuan-Feng Li and Jin-Shi XuResearchers at the University of Science and Technology of China (USTC) and National University of Singapore have verified the entanglement-assisted entropic uncertainty principle and demonstrated its practical usage to witness entanglement [1].In quantum mechanics, the ability to predict the precise outcomes of two

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-81520634115576191172011-10-04T06:23:00.000-07:002011-10-04T07:09:24.402-07:00

[L to R] Saul Perlmutter, Brian P. Schmidt, Adam G. RiessThe Nobel Prize in Physics 2011 was awarded "for the discovery of the accelerating expansion of the Universe through observations of distant supernovae" with one half to Saul Perlmutter and the other half jointly to Brian P. Schmidt and Adam G. Riess.Here are the contact information and links to their homepages and institutes:Saul

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-14629812457105090272011-09-25T05:52:00.000-07:002011-09-25T12:10:46.529-07:00

[L to R] Hartmut Grote, Roman Schnabel, Henning VahlbruchAuthors: Hartmut Grote, Roman Schnabel, Henning VahlbruchAffiliation: Institute for Gravitational Physics, Leibniz Universität Hannover and Max-Planck-Institute for Gravitational Physics (Albert-Einstein-Institute, AEI), Hannover, GermanyQuantum-squeezed light has now gone beyond the development-phase in the confinement of laboratory, and

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-58924145907742286522011-09-18T22:11:00.000-07:002011-09-18T23:02:00.902-07:00

Antonio BianconiAuthor: Antonio BianconiAffiliation: Department of Physics, Sapienza University of Rome, ItalyThe quantum state of matter made of a macroscopic quantum condensate that is able to resist the decoherence attacks of high temperature was discovered by Alex Muller and Georg Bednoz -- specifically in ceramic conductors. Today we know many different high temperature superconducting

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-7102818967613671082011-09-11T19:47:00.000-07:002011-09-14T21:07:54.396-07:00

Matteo MariantoniAuthor: Matteo MariantoniAffiliation: Department of Physics, University of California at Santa Barbara, USAA classical computer is based on both a hardware, i.e., a suitable set of micro-sized wires typically patterned on a silicon chip, and a software, i.e., a sequence of operations or code. Such operations are realized as electrical signals ‘running’ through the wires of the

Quarknoreply@blogger.com1tag:blogger.com,1999:blog-10737442.post-42029673585486761372011-09-04T17:44:00.000-07:002011-09-05T05:19:31.746-07:00

Samuel L. BraunsteinAuthor: Samuel L. BraunsteinAffiliation: Professor of Quantum Computation, University of York, UKWhy black holes are so important to physicsIn the black hole information paradox, Hawking pointed out an apparent contradiction between quantum mechanics and general relativity so fundamental that some thought any resolution may lead to new physics. For example, it has been

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-47022443236511696862011-08-28T07:55:00.000-07:002011-08-28T08:25:30.437-07:00

Mohammad Hafezi, Eugene A. Demler, Mikhail D. Lukin, and Jacob M. Taylor [photos courtesy of Joint Quantum Institute (JQI) and Harvard University] The advent of optical fibers a few decades ago made it possible for dozens of independent phone conversations to travel long distances along a single glass cable by, essentially, assigning each conversation to a different color—each narrow

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-83009596146812645892011-08-14T21:16:00.000-07:002011-08-14T21:36:49.211-07:00

Brookhaven physicists Stuart Wilkins (left) and John Hill (right) at NSLS beamline X1A2, where their research was performed with a new soft x-ray scattering facility. Researchers at the U.S. Department of Energy’s Brookhaven National Laboratory have observed a new way that magnetic and electric properties — which have a long history of ignoring and counteracting each other — can coexist in a

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-47190711301290554922011-08-07T19:26:00.000-07:002011-08-08T03:27:02.563-07:00

Joshua Nunn Author: Joshua Nunn Affiliation: Clarendon Laboratory, Department of Physics, Oxford University, UK We all grew up in a post-industrial society; you are reading this thanks to a communications revolution. Now we are on the cusp of the era of quantum information. Quantum information is a new kind of information that is more powerful than the digital bits found inside today's

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-38489386907795550732011-07-31T10:13:00.000-07:002011-07-31T11:06:19.152-07:00

[Left to Right] Sonja Franke-Arnold, Graham Gibson, Robert W Boyd and Miles J PadgettAuthors:Sonja Franke-Arnold1, Graham Gibson1, Robert W Boyd2,3 and Miles J Padgett1Affiliation:1School of Physics and Astronomy, SUPA, University of Glasgow, UK2Department of Physics, University of Ottawa, Canada 3The Institute of Optics and Department of Physics and Astronomy, University of Rochester, USA.What

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-91088026633460147442011-07-24T20:30:00.000-07:002011-07-24T21:12:08.902-07:00

Juergen VolzAuthor: Juergen VolzAffiliation: Laboratoire Kastler Brossel de l'E.N.S., Paris, FranceMeasurement lies at the heart of quantum physics and gives rise to many of the counter-intuitive aspects of the theory. In a classical world, a measurement can in principle be performed with arbitrary precision without disturbing the system. In contrast, a quantum mechanical measurement inevitably

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-5299903515248634652011-07-17T07:35:00.000-07:002011-07-17T08:08:10.892-07:00

David Dean (left) and Hai Ah Nam (right)The nucleus of an atom, like most everything else, is more complicated than we first thought. Just how much more complicated is the subject of a Petascale Early Science project led by Oak Ridge National Laboratory's David Dean.According to findings outlined by Dean and his colleagues in a recent paper in the journal Physical Review Letters [1], researchers

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-48187741070065382152011-07-10T07:02:00.000-07:002011-07-10T07:45:50.554-07:00

NIST research affiliate John Teufel, who designed the micro drum, with a chip holder used to contain the drum during experiments in which the drum was cooled to its lowest possible energy level, the quantum ground state [photo credit: Burrus/National Institute of Standards and Technology].Showcasing new tools for widespread development of quantum circuits made of mechanical parts, scientists from

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-53324002930189596532011-07-03T05:49:00.000-07:002011-09-04T19:42:26.844-07:00

Nu Xu [Photo courtesy: Lawrence Berkeley National Laboratory] In its infancy, when the universe was a few millionths of a second old, the elemental constituents of matter moved freely in a hot, dense soup of quarks and gluons. As the universe expanded, this quark–gluon plasma quickly cooled, and protons and neutrons and other forms of normal matter “froze out”: the quarks became bound together

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-6100580428157094032011-06-26T05:11:00.000-07:002011-06-26T06:56:19.205-07:00

Ori Katz (Left) and Eran Small (Right) are trying to pass light through a scattering mediumAuthors: Ori Katz, Eran Small, Yaron Bromberg, Yaron SilberbergAffiliation: Department of Physics of Complex Systems, Weizmann Institute of Science, Rehovot 76100, IsraelWhen light is passed through an inhomogeneous medium it gets randomly scattered, resulting in a diffused smeared-up light pattern even

Quarknoreply@blogger.com1tag:blogger.com,1999:blog-10737442.post-12208456427707794282011-06-19T05:24:00.000-07:002011-06-19T07:31:00.358-07:00

Authors (from left to right):Tolga Ergin, Joachim Fischer, and Martin WegenerAffiliation:Institute of Applied Physics, Karlsruhe Institute of Technology, GermanyLink to Martin Wagener's Group >>Invisibility cloaks are a fascinating subject for laymen, poets, movie directors, and scientists alike. In recent years, remarkable progress was made in realizing such devices. One design, the “carpet

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-19147741564000694782011-06-12T08:47:00.000-07:002011-06-12T09:21:59.489-07:00

Bergin Gjonaj Authors:Bergin Gjonaj1, Jochen Aulbach1, Patrick M. Johnson1, L. Kuipers1, Ad Lagendijk1 & Allard P. Mosk21Center for Nanophotonics, FOM Institute AMOLF, Amsterdam, The Netherlands2Complex Photonic Systems, MESA+ Institute for Nanotechnology, University of Twente, The NetherlandsResearchers from the FOM Institute AMOLF in Amsterdam and the University of Twente have developed a way

Quarknoreply@blogger.com1tag:blogger.com,1999:blog-10737442.post-12923312371035116312011-06-05T10:24:00.000-07:002011-06-05T11:26:07.777-07:00

Elbert G. van PuttenAuthor: E.G. van PuttenAffiliation: Complex Photonic Systems, MESA+ Institute for Nanotechnology, University of Twente, The NetherlandsIt is generally believed that disorder always degrades the sharpness of optical images. Now scientists of the MESA+ Institute at the University of Twente, University of Florence and the FOM Institute AMOLF have shown that a scattering and

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-973825880885345302011-05-29T09:08:00.000-07:002011-05-29T10:21:08.347-07:00

[From Left to Right] Ruynet L. de Matos Filho, Luiz Davidovich, Bruno M. EscherAuthors: Bruno M. Escher, Ruynet L. de Matos Filho, and Luiz DavidovichAffiliation: Instituto de Física, Universidade Federal do Rio de Janeiro, BrazilLink to the Quantum Optics and Quantum Information Group >>The estimation of parameters is an essential part of the scientific analysis of experimental data. It may

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-63702251686022741582011-05-22T09:18:00.000-07:002011-09-04T19:31:30.345-07:00

Philip Walther Author: Philip Walther Affiliation: Vienna Center for Quantum Science and Technology (VCQ), Faculty of Physics, University of Vienna, Austria. Quantum information science will revolutionize our society if we are able to harness its power. Therefore, worldwide theoretical and experimental efforts are focused on the realization of the Holy Grail of quantum-enhanced applications:

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-84976323706651305372011-05-15T09:18:00.000-07:002011-05-15T09:45:36.620-07:00

Michael Crommie [photo courtesy: Lawrence Berkeley National Laboratory]As far back as the 1990s, long before anyone had actually isolated graphene – a honeycomb lattice of carbon just one atom thick – theorists were predicting extraordinary properties at the edges of graphene nanoribbons. Now physicists at the U.S. Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab), and

Quarknoreply@blogger.com1tag:blogger.com,1999:blog-10737442.post-16307145660408084902011-05-08T19:49:00.000-07:002011-10-04T07:02:42.964-07:00

Anže Slosar [photo courtesy: Skorpinski/Berkeley Center for Cosmological Physics] In a meeting of the American Physical Society in Anaheim, California on May 1, Anže Slosar, a physicist at the U.S. Department of Energy's Brookhaven National Laboratory, presented the largest ever three-dimensional map of the distant universe created by using the light of 14,000 quasars to illuminate ghostly clouds

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-87932971647613897512011-05-01T14:40:00.000-07:002011-05-02T20:31:56.482-07:00

Jingjing Zhang (left) and Niels Asger Mortensen (right) of Technical University of DenmarkAuthors: Jingjing Zhang1, Shuang Zhang2, and Niels Asger Mortensen1Affiliations:1DTU Fotonik - Dept of Photonics Engineering, Technical University of Denmark, Denmark2School of Physics and Astronomy, University of Birmingham, UKMuch effort has been made to realize invisibility cloaks ever since the

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-88453995091000669052011-04-24T09:33:00.000-07:002011-04-24T14:10:51.113-07:00

Haixing Miao[Haixing Miao is the recipient of the 2010 GWIC (Gravitational Wave International Committee) Thesis Prize for his PhD thesis “Exploring Macroscopic Quantum Mechanics in Optomechanical Devices" (PDF). -- 2Physics.com]Author: Haixing MiaoAffiliation:Australian International Gravitational Research Centre (AIGRC), University of Western Australia, Perth, Australia;Theoretical AstroPhysics

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-64596751050031072362011-04-17T18:13:00.000-07:002011-04-17T18:51:31.806-07:00

Andrei Pimenov (left) and Alexey Shuvaev (right) [photo courtesy: Vienna University of Technology, Austria] In a paper published in Physical Review Letters [1], a group of scientists from the Vienna University of Technology (TU Vienna), Austria and Universität Würzburg, Germany have reported observation of a strong Faraday effect or the rotation of the polarization of light by means of a ultra

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-61444193061122096522011-04-10T10:13:00.000-07:002011-04-10T19:00:01.708-07:00

Mario Napolitano (left) and Morgan W. Mitchell (right) Authors: Mario Napolitano and Morgan W. Mitchell Affiliation: ICFO – Institute of Photonic Sciences, 08860 Castelldefels - Barcelona, Spain The most precise modern measurement techniques are based on related interferometric techniques: whether the application is defining time-standards, measuring accelerations, magnetic fields, or even

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-48888155491175326662011-04-03T09:45:00.000-07:002011-06-05T11:11:15.424-07:00

The Yale Team: Top (from L to R) A. Douglas Stone, Yidong Chong and Hui Cao; Bottom (from L to R) Heeso Noh, Li Ge, Wenjie Wan Authors: A. Douglas Stone, Yidong Chong and Hui Cao Affiliation: Dept. of Applied Physics, Yale University, USAThe continued development of micro and nano-fabricated lasers in recent years has led to a re-examination of the fundamental electromagnetic theory underlying

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-5315018509401405142011-03-27T07:19:00.000-07:002011-03-27T18:12:06.210-07:00

(Top L to R) Jiabi Chen, Yan Wang, Baohua Jia, Tao Geng; (Bottom L to R) Xiangping Li, Bingming Liang, Min Gu, and Songlin Zhuang Authors: Jiabi Chen1, Yan Wang1,2, Baohua Jia3, Tao Geng1, Xiangping Li3, Lie Feng1, Wei Qian1, Bingming Liang1, Xuanxiong Zhang1, Min Gu3, and Songlin Zhuang1 Affiliation: 1Shanghai Key Lab of Contemporary Optical System, Optical Electronic Information and Computer

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-71794715970571265702011-03-20T10:34:00.000-07:002011-03-20T11:15:19.948-07:00

Feng Wang beside a diagram showing how lowering the Fermi energy eliminates quantum pathways in graphene (lower left). The upper plot reveals that when destructively interfering quantum pathways are blocked, Raman scattering intensity is strongly enhanced (pale blue vertical, labeled G). At the same scattering, and at specific values of the Fermi energy, the plot reveals “hot electron

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-72553452355811736002011-03-13T11:26:00.000-07:002011-09-04T19:33:42.325-07:00

Ian Spielman (photo courtesy: Joint Quantum Institute, USA) Physicists at the Joint Quantum Institute (JQI), a collaboration of the National Institute of Standards and Technology (NIST) and the University of Maryland-College Park, have for the first time caused a gas of atoms to exhibit an important quantum phenomenon known as spin-orbit coupling. Their technique opens new possibilities for

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-43004015679059853422011-03-06T09:49:00.000-08:002011-03-06T10:45:33.861-08:00

(From L to R) Bumki Min, Muhan Choi and Seung Hoon LeeAuthor: Bumki Min Affiliation: Department of Mechanical Engineering and KAIST Institute for Optical Science and Technology, Korea Advanced Institute of Science and Technology, South KoreaFor the past ten years, researchers in the field of metamaterials have been focusing on the demonstration of negative refractive index, as the negative side

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-75239337671254234042011-02-27T06:34:00.000-08:002011-02-27T09:46:31.653-08:00

Alexandra BoltassevaAuthors: Alexandra Boltasseva1 and Harry A. Atwater2Affiliations:1: School of Electrical & Computer Engineering and Birck Nanotechnology Center, Purdue University, IN, USA.2: Applied Physics and Kavli Nanoscience Institute, California Institute of Technology, USA.We have started a new research direction of developing new classes of materials that could serve as building blocks

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-87234879855637915012011-02-20T08:53:00.000-08:002011-02-20T10:18:35.675-08:00

Suyong Jung (left) and Gregory Rutter (right), the leading authors of the Nature Physics paper[1] describing quantum dot formation in graphene when placed on insulating substrates.Electronics researchers love graphene. A two-dimensional sheet of carbon one atom thick, graphene is like a superhighway for electrons, which rocket through the material 100 times faster than they normally do in silicon

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-16310224146836936662011-02-13T09:29:00.000-08:002011-02-13T10:51:22.493-08:00

Shuang ZhangAuthor: Shuang ZhangAffiliation: School of Physics and Astronomy, University of Birmingham, UKMaking things invisible is certainly appealing to most people - including scientists and magicians. Invisibility cloaks have existed only in movies and science fictions until 2006 when Pendry and Leonhardt independently pointed out ways to scientifically realize them [1, 2]. Transformation

Quarknoreply@blogger.com1tag:blogger.com,1999:blog-10737442.post-27309530806785529172011-02-06T11:51:00.000-08:002011-02-06T12:24:28.800-08:00

Jun Ye [photo courtesy: JILA/University of Colorado]In a paradox typical of the quantum world, JILA scientists have eliminated collisions between atoms in an atomic clock by packing the atoms closer together. The surprising discovery, described in the Feb. 3 issue of Science Express [1], can boost the performance of experimental atomic clocks made of thousands or tens of thousands of neutral

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-25669068038982218292011-01-30T08:54:00.000-08:002011-01-30T09:39:08.034-08:00

[Left to Right] Yongmin Liu, Xiang Zhang and Thomas Zentgraf, three of the major authors of a Nature Nanotechnology paper describing GRIN plasmonics, a practical method for achieving exotic optics.(Photo by Roy Kaltschmidt, Berkeley Lab)They said it could be done and now they’ve done it. What’s more, they did it with a GRIN. A team of researchers with the U.S. Department of Energy (DOE)’s

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-35259436859049019932011-01-23T09:21:00.000-08:002011-01-23T09:44:07.019-08:00

Alan Migdall [photo courtesy: Joint Quantum Institute, University of Maryland]The quantum computers of tomorrow might use photons, or particles of light, to move around the data they need to make calculations, but photons are tricky to work with. Two new papers[1,2] by researchers working at the National Institute of Standards and Technology (NIST) have brought science closer to creating reliable

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-14036648917540250002011-01-16T08:47:00.000-08:002011-01-17T05:43:51.046-08:00

[Left to Right] Mads Lykke Andersen, Peter Lodahl and Søren Stobbe[This is an invited article based on a recent work by the authors. -- 2Physics.com Team]Authors: Mads Lykke Andersen, Søren Stobbe, and Peter Lodahl Affiliation : Quantum Photonics Group, DTU Fotonik, Technical University of Denmark.Today it is possible to fabricate and tailor highly efficient solid-state light-sources that emit a

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-38404456943466857162011-01-09T19:06:00.000-08:002011-01-09T19:44:22.384-08:00

Xiang Zhang [photo courtesy: UC Berkeley]Researchers at the University of California, Berkeley, have developed a new technique that allows plasmon lasers to operate at room temperature, overcoming a major barrier to practical utilization of the technology.The achievement, described in an advanced online publication of the journal Nature Materials [1], is a "major step towards applications" for

Quarknoreply@blogger.com1tag:blogger.com,1999:blog-10737442.post-48728291487038148182011-01-02T13:53:00.000-08:002011-03-06T11:05:14.333-08:00

Biplab Bhawal [photo by Chris Walter]Editorial:At the end of the summer of 2010, my 17-year old son landed in Carnegie Mellon University armed with a laptop, an iPhone and a Kindle to start his freshman year. All of these three devices had lots of scratches on them, and they looked as dirty as they should be for being dedicated slaves (no fix hour, no health benefit) of an owner who had just

Quarknoreply@blogger.com8tag:blogger.com,1999:blog-10737442.post-6647827146700133402010-12-26T11:17:00.000-08:002010-12-26T12:08:05.439-08:00

Tobias J. KippenbergResearchers at the Ecole Polytechnique Fédérale de Lausanne (EPFL), Switzerland and the Max Planck Institute of Quantum Optics (MPQ), Germany discover a novel way to switch light all-optically on a chip.The ability to control the propagation of light is at the technological heart of today’s telecommunication society. Researchers in the Laboratory of Photonics and Quantum

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-70983330127874632262010-12-19T05:41:00.000-08:002011-01-05T06:09:32.240-08:00

(From L to R): Dirk van der Marel, Alexey Kuzmenko, Julien Levallois and Iris Crassee of University of GenevaA team of physicists from the University of Geneva (Switzerland) -- in collaboration with researchers in the University of Erlangen-Nuremberg (Germany) and Berkeley Advanced Light Source (USA) -- has recently measured the magnetically induced rotation of the polarization of light (Faraday

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-70961477179223787752010-12-12T08:28:00.000-08:002011-02-27T09:37:51.154-08:00

A. Di Falco (left) and T. F. Krauss[This is an invited article based on a recently published work by the authors -- 2Physics.com]Authors: Andrea Di Falco and Thomas F. KraussAffiliation: School of Physics and Astronomy, Univ. of St Andrews, UKAndrea Di Falco, Martin Plöschner and Thomas Krauss of the School of Physics and Astronomy of the Scottish University of St Andrews, in an article published

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-61932337937282796912010-12-05T06:58:00.000-08:002010-12-05T16:27:22.580-08:00

Alberto Peruzzo[This is an invited article based on a recently published work by the authors -- 2Physics.com]Authors: Alberto Peruzzo and Jeremy L. O’Brien Affiliation: Centre for Quantum Photonics, H. H. Wills Physics Laboratory and Dept of Electrical & Electronic Engineering, University of Bristol, UK Since their initial development for studying the random motion of microscopic particles (such

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-19161618268050710962010-11-28T05:23:00.000-08:002010-11-28T05:53:47.652-08:00

James Analytis [Photo courtesy: Stanford U.]Using one of the most powerful magnets in the world, a small group of researchers has successfully isolated signs of electrical current flowing along the surface of a topological insulator, an exotic material with promising electrical properties. The research, led by James Analytis and Ian Fisher of the Stanford Institute of Materials and Energy

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-88072669193978948082010-11-21T08:35:00.000-08:002010-11-21T09:29:31.497-08:00

Jeff Kimble (photo courtesy: Caltech Particle Theory Group)Researchers at the California Institute of Technology (Caltech) have demonstrated quantum entanglement for a quantum state stored in four spatially distinct atomic memories.Their work, described in the November 18 issue of the journal Nature [1], also demonstrated a quantum interface between the atomic memories—which represent something

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-63737839893052765862010-11-07T00:44:00.000-07:002010-11-08T07:51:16.741-08:00

Left to right: Eran Small, Yoav Lahini, Yaron Bromberg and Yaron Silberberg[This is an invited article based on a recently published work by the authors -- 2Physics.com]Authors: Yoav Lahini, Yaron Bromberg, Eran Small and Yaron SilberbergAffiliation: Department of Physics of Complex Systems, the Weizmann Institute of Science, Rehovot, Israel.The next time you go out on a sunny day, take a minute

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-21692492321887805552010-10-31T01:18:00.000-07:002010-10-31T01:46:19.668-07:00

A simple device measures the quantum noise of vacuum fluctuations and generates true random numbers.Image caption: A true game of chance: Max Planck researchers produce true random numbers by making the randomly varying intensity of the quantum noise visible. To do this, they use a strong laser (coming from the left), a beam splitter, two identical detectors and several electronic components. The

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-26256763560982175242010-10-24T02:17:00.000-07:002011-07-17T08:11:52.217-07:00

Ilídio Lopes[This is an invited article based on the author's work in collaboration with Joseph Silk of the University of Oxford -- 2Physics.com]Author: Ilídio LopesAffiliation: Centro Multidisciplinar de Astrofísica, Instituto Superior Técnico, Lisboa, Portugal;Departamento de Física, Universidade de Évora, Évora, Portugal.The standard concordance cosmological model of the Universe firmly

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-51256044810101769202010-10-17T07:26:00.000-07:002010-10-18T05:31:36.373-07:00

Niek F. van Hulst [This is an invited article based on recent works by the author and his collaborators -- 2Physics.com]Author: Niek F. van Hulst Affiliation: ICFO – Institute of Photonic Sciences, 08860 Castelldefels - Barcelona, Spain.ICREA – Institució Catalana de Recerca i Estudis Avançats, 08015 Barcelona, Spain.Can one imagine a TV-antenna to send a beam of light? Yes, nanoscale

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-68010352122151255362010-10-10T08:19:00.000-07:002011-09-04T19:34:17.311-07:00

Amanda Petford-Long [Photo courtesy: Argonne National Laboratory] Scientists at the U.S. Department of Energy’s (DOE) Argonne National Laboratory have developed a new technique [1] that maps the magnetic vector potential — one of the most important electromagnetic quantities and a foundation of quantum mechanics — in three dimensions. The vector potential is central to a number of areas of

Quarknoreply@blogger.com1tag:blogger.com,1999:blog-10737442.post-29766006390394400032010-10-05T07:24:00.000-07:002010-12-19T06:34:52.992-08:00

Andre Geim (photo courtesy: Sergeom, Wikimedia Commons) and Konstantin Novoselov (photo courtesy: University of Manchester, UK) The Nobel Prize in Physics 2010 was awarded jointly to Andre Geim and Konstantin Novoselov of the University of Manchester "for groundbreaking experiments regarding the two-dimensional material graphene"Graphene is a form of carbon. As a material it is completely new –

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-70947225449615279262010-10-03T07:50:00.000-07:002010-10-03T08:05:42.128-07:00

[To add an upcoming physics conference to this list, please send an email to 2Physics@gmail.com ]Oct 18-23: 4th Intl Symposium "High Energy Physics, Cosmology and Gravity" (Kyiv, Ukraine)Oct 23-28: New Trends in Nonlinear Dynamics: Heat Control and Thermo-electric Efficiency(Erice, Sicily, Italy)Nov 01-06: Petrov 2010 Anniversary Symposium on General Relativity and Gravitation (Kazan, Russia)Nov

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-48290583575254795942010-09-26T22:26:00.000-07:002011-02-06T12:26:39.911-08:00

James Chin-wen Chou with the world’s most precise clock, based on the vibrations of a single aluminum ion. The ion is trapped inside the metal cylinder (center right) [Photo credit: J. Burrus/NIST]Scientists have known for decades that time passes faster at higher elevations—a curious aspect of Einstein's theories of relativity that previously has been measured by comparing clocks on the Earth's

Quarknoreply@blogger.com1tag:blogger.com,1999:blog-10737442.post-58243677881522652732010-09-19T17:52:00.000-07:002010-09-19T23:08:34.488-07:00

(From left to right) Mikhail Balabas, Todor Karaulanov, Dmitry Budker, and Micah Ledbetter in Budker's laboratory in University of California, Berkeley [Photo credit: Damon English, Lawrence Berkeley National Laboratory]Magnetometers come in many shapes and sizes – an ordinary hand-held compass is the simplest – but alkali-vapor magnetometers are extrasensitive devices that measure magnetic

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-74986277669494891112010-09-12T21:41:00.000-07:002010-12-19T06:35:23.985-08:00

Joseph Stroscio [Photo courtesy: Center for Nanoscale Science & Technology (CNST), Gaithersburg, MD, USA]An international team of researchers from the National Institute of Standards and Technology (NIST), the University of Maryland, Seoul National University, the Georgia Institute of Technology, and the University of Texas at Austin, have "unveiled" a quartet of graphene's electron states and

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-58248646453080794222010-09-05T08:44:00.000-07:002010-09-05T09:12:26.902-07:00

NIST research associate Thomas Gerrits at the laser table used to create "quantum cats" made of photons [Photo courtesy: NIST, Boulder, CO, USA]Researchers at the National Institute of Standards and Technology (NIST) have created "quantum cats" made of photons (particles of light), boosting prospects for manipulating light in new ways to enhance precision measurements as well as computing and

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-38475593169093874212010-08-29T08:43:00.000-07:002010-08-29T10:11:51.397-07:00

[From Left to Right] Mario Berta1,2, Matthias Christandl1,2, Roger Colbeck1,3,4, Joseph M. Renes5, Renato Renner1 ; Affiliation: 1Institute for Theoretical Physics, Zurich, Switzerland; 2Faculty of Physics, Ludwig-Maximilians-Universität München, Munich, Germany; 3Perimeter Institute for Theoretical Physics, Waterloo, Canada; 4Institute of Theoretical Computer Science, Zurich, Switzerland;

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-71078591690150046582010-08-22T07:26:00.000-07:002011-09-04T19:34:49.391-07:00

Thomas A. Maier [photo courtesy: Oak Ridge National Laboratory] Superconducting materials, which transmit power resistance-free, are found to perform optimally when high- and low-charge density varies on the nanoscale level, according to research performed at the US Department of Energy's Oak Ridge National Laboratory (ORNL) and Institut für Theoretische Physik, Zürich, Switzerland. In research

Quarknoreply@blogger.com1tag:blogger.com,1999:blog-10737442.post-74904534639893455752010-08-15T17:38:00.000-07:002010-08-16T08:12:05.345-07:00

Stephen Leone [photo courtesy: University of California, Berkeley]An international team of scientists led by groups from the Max Planck Institute of Quantum Optics (MPQ) in Garching, Germany, and from the U.S. Department of Energy’s Lawrence Berkeley National Laboratory and the University of California at Berkeley has used ultrashort flashes of laser light to directly observe the movement of an

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-69529489523579769822010-08-08T16:38:00.000-07:002010-08-08T17:20:40.684-07:00

Karina Jiménez-García [photo courtesy: Joint Quantum Institute, Maryland]Researchers studying a gas of trapped ultracold atoms have identified a set of conditions, never before observed but in excellent agreement with new theoretical predictions, that determine the onset of a critical “phase transition” in atomic arrays used to model the behavior of condensed-matter systems.The findings provide

Quarknoreply@blogger.com1tag:blogger.com,1999:blog-10737442.post-78034202272505073872010-07-25T10:00:00.000-07:002010-07-29T21:12:20.884-07:00

Holger J. Pletsch[This is an invited article from Dr. Holger J. Pletsch who is the recipient of the 2009 GWIC (Gravitational Wave International Committee) Thesis Prize for his PhD thesis “Data Analysis for Continuous Gravitational Waves: Deepest All-Sky Surveys” (PDF). The thesis also received the 2009 Dieter Rampacher Prize of the Max Planck Society in Germany -- awarded to its youngest Ph.D.

Quarknoreply@blogger.com1tag:blogger.com,1999:blog-10737442.post-7488751544556828802010-07-18T17:39:00.000-07:002010-07-19T21:11:15.160-07:00

The HPQCD collaboration: (from Left to right) Eduardo Follana, Greg Millar, Ian Allison, Craig McNeile, Emel Gulez, Junko Shigemitsu, Peter Lepage, Elvira Gamiz, Howard Trottier, Ron Horgan, Kent Hornbostel, Christine Davies, Iain Kendall, Eric Gregory.[This is an invited article based on a recently published work of the High Precision Quantum Chromodynamics (HPQCD) collaboration. -- 2Physics.com

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-15219856299765310492010-07-11T16:59:00.000-07:002010-07-11T17:27:24.885-07:00

Nora Berrah [photo courtesy: Western Michigan University]The first published scientific results from the world's most powerful hard X-ray laser -- Linac Coherent Light Source (LCLS) -- located at the Department of Energy's SLAC National Accelerator Laboratory, show its unique ability to control the behaviors of individual electrons within simple atoms and molecules by stripping them away, one by

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-89026192940556368082010-07-04T08:58:00.001-07:002010-07-04T09:27:56.152-07:00

The image shows two UC Berkeley physicists Dima Budker and Damon English. Dima Budker (left) is in a fermionic state, occupied by only one of himself. Many copies of the bosonic Damon English (right) occupy the same state at once. [image credit: Roy Kaltschmidt and Damon English /University of California, Berkeley and Lawrence Berkeley National Laboratory] The best theory for explaining the

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-1412631365823550992010-06-27T17:26:00.000-07:002010-07-03T10:05:51.098-07:00

Ellen D. Williams [This is an invited article based on a recently published work by the authors -- 2Physics.com]Authors: Chenggang Tao, William G. Cullen, and Ellen D. Williams Affiliation: Materials Research Science and Engineering Center & Department of Physics, University of Maryland, USALink to the Williams Lab >>As electronic devices get smaller and smaller, they are more susceptible to

Quarknoreply@blogger.com2tag:blogger.com,1999:blog-10737442.post-7462175924990105462010-06-20T11:08:00.000-07:002010-06-20T20:05:07.896-07:00

Mark Van Raamsdonk[Every year (since 1949) the Gravity Research Foundation honors best submitted essays in the field of Gravity. This year's prize goes to Mark Van Raamsdonk for his essay "Building Up Spacetime with Quantum Entanglement". The five award-winning essays will be published in the Journal of General Relativity and Gravitation (GRG) and subsequently, in a special issue of the

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-69612581388515738962010-06-13T16:38:00.000-07:002010-06-18T20:52:41.026-07:00

J.C. Séamus Davis (Photo courtesy: Cornell University) Using a microscope designed to image the arrangement and interactions of electrons in crystals, scientists have captured the first images of electrons that appear to take on extraordinary mass under certain extreme conditions. The technique reveals the origin of an unusual electronic phase transition in one particular material, and opens the

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-27075418836833515312010-06-06T06:39:00.000-07:002010-06-18T05:25:45.796-07:00

Kathryn Krycka [photo courtesy: University of Florida]While attempting to solve one mystery about iron oxide-based nanoparticles, a research team working at the National Institute of Standards and Technology (NIST) stumbled upon another one. But once its implications are understood, their discovery may give nanotechnologists a new and useful tool.The nanoparticles in question are spheres of

Quarknoreply@blogger.com1tag:blogger.com,1999:blog-10737442.post-80264770154378794272010-05-23T06:30:00.000-07:002010-05-23T07:20:07.104-07:00

Ahmed Ali, Christian Hambrock, M. Jamil Aslam(from Left to Right)[This is an invited article based on a recent work by the authors. -- 2Physics.com]Authors: Ahmed Ali1, Christian Hambrock1, M. Jamil Aslam2Affiliation: 1 Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany.2 Physics Department, Quaid-i-Azam University, Islamabad, Pakistan.In December 2007, the Belle collaboration working at the

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-69503421190585817302010-05-16T06:01:00.000-07:002010-06-18T06:00:53.684-07:00

David HayesFor the first time, physicists have employed a powerful technique of laser physics – the “optical frequency comb” – to entangle two trapped atoms [1]. This form of control is a promising candidate for use as a means of quantum control for quantum computing and information-processing, and offers substantial operational advantages over other methods.The team, led by the Joint Quantum

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-20736018426438627602010-05-09T05:42:00.000-07:002010-06-18T05:26:56.826-07:00

Stephan Camerer, David Hunger, and Philipp Treutlein (left to right)[This is an invited article based on a recently published work by the authors and their collaborators from Germany and France. -- 2Physics.com]Authors: Philipp Treutlein, David Hunger, Stephan CamererAffiliation: Ludwig-Maximilians-Universität München, Max-Planck-Institut für Quantenoptik, GermanyLink to the Munich atom chip

Quarknoreply@blogger.com1tag:blogger.com,1999:blog-10737442.post-57997243627341303862010-05-02T08:42:00.000-07:002011-02-27T09:38:30.280-08:00

Stanley P. Burgos (left) and Harry A. Atwater (right)[This is an invited article based on a recently published work by the authors and their collaborators from the Netherlands. -- 2Physics.com]Authors: Stanley P. Burgos and Harry A. AtwaterAffiliation: Kavli Nanoscience Institute, California Institute of Technology, USA Link to ATWATER Research Group >>Negative index metamaterials (NIMs) are

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-4722451205430734282010-04-25T16:01:00.001-07:002010-04-26T08:19:54.508-07:00

Saul Perlmutter [Photo courtesy: Lawrence Berkeley National Laboratory]The international Supernova Cosmology Project (SCP), based at the U.S. Department of Energy’s Lawrence Berkeley National Laboratory, has announced the Union2 compilation of hundreds of Type Ia supernovae, the largest collection ever of high-quality data from numerous surveys. Analysis of the new compilation significantly

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-30615517952713697052010-04-22T20:40:00.000-07:002010-04-22T21:05:12.897-07:00

[To add an upcoming physics conference to this list, please send an email to 2Physics@gmail.com ]May 23-29: Workshop on Advances in Foundations of Quantum Mechanics and Quantum Information with atoms and photons ad memoriam of Carlo Novero (Turin, Italy)May 25-28: 2nd Workshop on "State of the Art in Nuclear Cluster Physics" (Brussels, Belgium)May 30 - Jun 03: Intl Conference on Nanophotonics

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-19235849084551420902010-04-11T05:49:00.000-07:002011-06-19T07:32:32.502-07:00

Martin Wegener, Tolga Ergin, Nicolas Stenger (from left to right)[This is an invited article based on a recently published work by the authors and their collaborators from Germany and UK -- 2Physics.com]Authors: Tolga Ergin, Nicolas Stenger, Martin WegenerAffiliation: Institut für Angewandte Physik, Karlsruher Institut für Technologie (KIT), GermanyIn recent years, the emerging field of

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-9020448339192024862010-04-04T08:57:00.000-07:002010-06-18T20:56:35.327-07:00

Douglas Smith [Photo courtesy: Nanomechanical Properties Group, NIST]How hard do you have to pull on a single atom of—let’s say—gold to detach it from the end of a chain of like atoms?[For answer, see the end of this article*]It’s a measure of the astonishing progress in nanotechnology that questions that once would have interested only physicists or chemists are now being asked by engineers. To

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-22837788962604659122010-03-28T08:37:00.000-07:002010-06-18T21:09:54.982-07:00

Uros Seljak [photo courtesy: University of California, Berkeley]An analysis of more than 70,000 galaxies by University of California, Berkeley, University of Zurich and Princeton University physicists demonstrates that the universe – at least up to a distance of 3.5 billion light years from Earth – plays by the rules set out 95 years ago by Albert Einstein in his General Theory of Relativity.By

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-6666252057180382932010-03-21T09:29:00.000-07:002010-06-18T05:28:48.734-07:00

(L to R) Andrew Cleland, Aaron O'Connell and John Martinis [photo credit: George Foulsham / Univ of California, Santa Barbara]A team of physicists from University of California, Santa Barbara has provided the first clear demonstration that the theory of quantum mechanics applies to the mechanical motion of an object large enough to be seen by the naked eye. Their work satisfies a longstanding

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-16046637178382554612010-03-14T08:57:00.000-07:002010-06-18T21:10:13.192-07:00

Phil Marshall (KIPAC, SLAC/Stanford) demonstrates lensing using a wine glass. [Video courtesy of Brad Plummer/Julie Karceski (SLAC)].Using entire galaxies as lenses to look at other galaxies, researchers have a newly precise way to measure the size and age of the universe and how rapidly it is expanding, on a par with other techniques. The measurement determines a value for the Hubble constant,

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-75815497930966042022010-03-07T08:42:00.001-08:002010-04-11T09:13:32.127-07:00

Erwan Bimbard[This is an invited article based on a recently published work by the authors and their collaborators from Canada, France and Germany -- 2Physics.com]Authors: Erwan Bimbard, Alexander I. Lvovsky Affiliation:Institute for Quantum Information Science, University of Calgary, Canada,Département de Physique, Ecole Normale Supérieure, Paris, FranceThe ability to generate and manipulate

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-82315087228607977662010-02-28T09:35:00.000-08:002010-06-18T05:29:31.882-07:00

Antonio Checco [Photo courtesy: Brookhaven National Laboratory]A team of physicists at the U.S. Department of Energy’s Brookhaven National Laboratory has obtained the first glimpse of miniscule air bubbles that keep water from wetting a super non-stick surface. Detailed information about the size and shape of these bubbles — and the non-stick material the scientists created by “pock-marking” a

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-57653637392982470992010-02-21T11:36:00.000-08:002011-02-06T12:27:36.254-08:00

NIST postdoctoral researcher James Chin-wen Chou with the world’s most precise clock, based on the vibrations of a single aluminum ion. The ion is trapped inside the metal cylinder (center right) [Photo credit: J. Burrus/NIST]In a paper published in the Feb 17th issue of Physical Review Letters [1], a team of physicists from National Institute of Standards and Technology (NIST) reported the

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-81120301916787501142010-02-07T13:40:00.000-08:002010-06-18T06:00:42.189-07:00

Paul Lett [Photo courtesy: Joint Quantum Institute, U. Maryland]Researchers at the Joint Quantum Institute (JQI), a collaboration of the National Institute of Standards and Technology (NIST) and the University of Maryland at College Park, can speed up photons (particles of light) to seemingly faster-than-light speeds through a stack of materials by adding a single, strategically placed layer.

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-29437105797855373532010-01-31T04:54:00.000-08:002010-11-07T01:09:34.810-08:00

Juan Diego Ania-Castañón of Instituto de Óptica (CSIC), Spain[This is an invited article based on a recent work by the author and his collaborators from UK and Russia. -- 2Physics.com]Author: Juan Diego Ania CastañónAffiliation: Instituto de Óptica, CSIC, SpainSince their inception, lasers have been considered simply as sources of light. However, ultralong lasers implemented in optical fiber can

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-41525160130875849822010-01-24T05:28:00.000-08:002010-05-23T06:48:20.062-07:00

Christian Roos[This is an invited article based on a recently published work by the author and his collaborators from Austria and Spain -- 2Physics.com]Author: Christian Roos Affiliation: Institut für Experimentalphysik, Universität Innsbruck, AustriaandInstitute for Quantum Optics and Quantum InformationAustrian Academy of SciencesBy the mid 1920s physicists had established the dynamics of

Quarknoreply@blogger.com0tag:blogger.com,1999:blog-10737442.post-6882618195816539582010-01-10T11:21:00.000-08:002011-09-04T19:35:21.742-07:00

From Left to Right: Valerii Vinokur, Tatyana Baturina and Nikolai Chtchelkatchev (photo courtesy: Argonne National Laboratory) Scientists at the U.S. Department of Energy's Argonne National Laboratory have discovered the microscopic mechanism behind the phenomenon of superinsulation, the ability of certain materials to completely block the flow of electric current at low temperatures. The

Quarknoreply@blogger.com1tag:blogger.com,1999:blog-10737442.post-56477746325293005662010-01-03T05:25:00.000-08:002010-11-07T01:09:56.640-08:00

Radha Balakrishnan [photo courtesy: Indian Academy of Sciences]Solitary waves that run a long distance without losing their shape or dying out are a special class of waves called solitons. These everlasting waves are exotic enough, but theoreticians at the Joint Quantum Institute (JQI, a collaboration of the National Institute of Standards and Technology and the University of Maryland), and their

Quarknoreply@blogger.com1tag:blogger.com,1999:blog-10737442.post-89235454899975296842009-12-27T05:21:00.000-08:002010-06-18T20:48:21.760-07:00

Junichiro Kono[This is an invited article based on recently published work by the author and his collaborators from Rice University, Texas A&M University, and Los Alamos National Laboratory -- 2Physics.com]Author: Junichiro KonoAffiliation: Dept of Electrical and Computer Engineering, Rice University, Houston, Texas 77005, USA.Maximum modulation of light transmission occurs when an initially

Quarknoreply@blogger.com0