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2Physics Quote:
"The exchange character of identical particles plays an important role in physics. For bosons, such an exchange leaves their quantum state the same, while a single exchange between two fermions gives a minus sign multiplying their wave function. A single exchange between two Abelian anyons gives rise to a phase factor that can be different than 1 or -1, that corresponds to bosons or fermions, respectively. More exotic exchanging character are possible, namely non-Abelian anyons. These particles have their quantum state change more dramatically, when an exchange between them takes place, to a possibly different state." -- Jin-Shi Xu, Kai Sun, Yong-Jian Han, Chuan-Feng Li, Jiannis K. Pachos, Guang-Can Guo
(Read Full Article: "Experimental Simulation of the Exchange of Majorana Zero Modes"
)

Tuesday, May 10, 2005

Nanotechnology: "There's Plenty of Room at the Bottom"

In 1959, Richard Feynman gave his visionary talk entitled "There's Plenty
of Room at the Bottom" on the Caltech campus in Pasadena, CA. This great
presentation by Feynman now holds a preeminent, defining, and inspirational
place in the history of the now-emerging field of Nanotechnology. In what
were approximately 7000 words, he mapped out potentialities that are only
today beginning to be realized.

In January 2001, President Clinton visited the Caltech campus and, in a
preview of his upcoming State of the Union address, announced his
administration's launch of the "National Nanotechnology Initiative." This
impetus has since led to a huge upsurge of activity; a number of major
universities and research institutions have now embarked upon their own
"nano" initiatives in diverse areas of nanoscale science and technology
that covers important areas of biotechnology too.

Caltech launched the Kavli Nanoscience Institute (KNI) in order to enhance
its multidisciplinary research activities in all ares of nanoscience. To know
more about nanotechnology, visit KNI website. Yes, you will get a link to
many interesting and popular articles about this field, including that
celebrated article by Feynman also!


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