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Gauge invariance of the beta-function in nonrelativistic quantum electrodynamics

Olav F. Syljuasen
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Abstract

Recently there has been much interest in gauge theories applied to condensed matter physics. I show that for a system of nonrelativistic electrons coupled to a U(1) gauge field in the presence of a Fermi surface, the beta-function to one-loop order is, for a particular family of gauge-choices, independent of the gauge-choice.

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Olav F. Syljuasen. 1996-08-10. Gauge invariance of the beta-function in nonrelativistic quantum electrodynamics. https://doi.org/10.1016/s0550-3213(97)00148-x

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