An Introduction to Quantum Order, String-net Condensation, and Emergence of Light and Fermions

Abstract

We review some recent work on new states of matter. Those states cannot be described symmetry breaking and hence contain a new kind of order -- quantum order. Some quantum orders are shown to be closely related to string-net condensations. Those quantum orders lead to an emergence of gauge bosons and fermions from pure bosonic models.

16 pages. Homepage http://dao.mit.edu/~wen

References in corpus (3)

• Pyrochlore Photons: The U(1) Spin Liquid in a S=1/2 Three-Dimensional Frustrated Magnet
• Topological Order and Conformal Quantum Critical Points
• Three dimensional resonating valence bond liquids and their excitations

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