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Can anyone kindly provide any information on valuable references or books on this topic? It appears to be prevalent in 90s papers on High-Tc superconductivity or quantum Hall effect, especially in a form of fermions interacting with U(1) gauge field.

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Related: physics.stackexchange.com/q/22046/2451 and links therein. –  Qmechanic Mar 21 '14 at 1:24

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