Schedule Jun 07, 2004
From new states of matter to a unification of gauge interaction and fermi statistics
Xiao-Gang Wen (MIT)

Landau's symmetry breaking theory can be viewed as a theory of "particle'' condensations. Therefore, string-net condensation gives rise to a new form of matter, that cannot be described by symmetry breaking. The collective excitations in string-net condensed phases can behave just like the gauge bosons and fermions. This suggests that gauge interactions and Fermi statistics may have a common origin -- string-net condensation. In addition, the string-net picture teach us how to make artificial photons, electrons, and quarks in condensed matter systems.

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