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2Physics Quote:
"Can photons in vacuum interact? The answer is not, since the vacuum is a linear medium where electromagnetic excitations and waves simply sum up, crossing themselves with no interaction. There exist a plenty of nonlinear media where the propagation features depend on the concentration of the waves or particles themselves. For example travelling photons in a nonlinear optical medium modify their structures during the propagation, attracting or repelling each other depending on the focusing or defocusing properties of the medium, and giving rise to self-sustained preserving profiles such as space and time solitons or rapidly rising fronts such as shock waves." -- Lorenzo Dominici, Mikhail Petrov, Michal Matuszewski, Dario Ballarini, Milena De Giorgi, David Colas, Emiliano Cancellieri, Blanca Silva Fernández, Alberto Bramati, Giuseppe Gigli, Alexei Kavokin, Fabrice Laussy, Daniele Sanvitto. (Read Full Article: "The Real-Space Collapse of a Two Dimensional Polariton Gas" )

Monday, July 07, 2008

Upcoming Physics Conferences

[To add an upcoming physics conference to this list, please send an email to 2Physics@gmail.com ]

Jul 07-11: Dark Energy and Dark Matter (Lyon, France)
Jul 16-23: Astronomy Education Meeting (Lisbon, Portugal)
Jul 17-19: 12th Paris Cosmology Colloquium (Paris, France)
Aug 07-18: De Sitter Cosmology (Stockholm, Sweden)
Aug 25-29: Emergent Gravity (MIT, USA)
Aug 25-29: Geometry and Analysis (Stockholm, Sweden)
Aug 25-29: Gravity in Higher Dimensions (Bremen, Germany)
Aug 25-29: 22nd general conference of the condensed matter division of the European Physical Society (Rome, Italy)
Aug 26-29: COSMO 08 (Madison, USA)
Aug 26-29: Strong and Electroweak Matter (Amsterdam) Contact: sewm08@science.uva.nl
Sep 07-12: 100 Years after Minkowski (Bad Honnef, Germany)
Sep 08-12: Sources of Gravitational Radiation (Valencia, Spain)
Sep 14-20: QICS Workshop on "Foundational Structures for Quantum Information and Computation" (Obergurgl, Austria)
Sep 15-19: Raman scattering in materials science (Warsaw, Poland)
Sep 24-28: TeV astrophysics (Beijing, China)
Sep 24-28: Dark Matter, Dark Energy and Alternative Gravities (Beijing, China)
Sep 25-27: 24th Max Born Symposium on Quantum Statistical Mechanics and Field Theory(Wroclaw, Poland)
Oct 07-11: Dark Energy (Munich, Germany)
Oct 24-29: Italian Quantum Information Science Conference (Camerino, Italy)
Nov 10-14: Correlations and Coherence in Quantum Matter (Evora, Portugal)
Dec 07-14: Texas Symposium (Vancouver, Canada)
Mar 25-30: ISF Research Workshop on Random Matrices and Integrability: From Theory to Applications (Yad Hashmona, Judean Hills, Israel)
May 25-29: From the Planck Scale to the Electroweak Scale (Padova, Italy)
Jun 29-Jul 03: Invisible Universe (Paris, France)

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