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Elementary formula for the Hall conductivity of interacting systems

, , , and . (2012)cite arxiv:1207.3747 Comment: 7 pages.

Abstract

A formula for the Hall conductivity of interacting electrons is given under the assumption that the ground state manifold is N_gs-fold degenerate and discrete translation symmetry is neither explicitly nor spontaneously broken.

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Elementary formula for the Hall conductivity of interacting systems

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