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arXiv · 1205.3722

Consequences of a condensed matter realization of Lorentz violating QED in Weyl semi-metals

Adolfo G. Grushin
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Abstract

In Lorentz violating quantum electrodynamics (QED) it is known that a radiatively induced Chern-Simons term appears in the effective action for the gauge field, which is finite but undetermined. This ambiguity is shown to be absent in a condensed matter realization of such a theory in Weyl semi-metals due to the existence of a full microscopic model from which this effective theory emerges. Physically observable consequences such as birefringence are also discussed in this scenario.

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Adolfo G. Grushin. 2012-08-21. Consequences of a condensed matter realization of Lorentz violating QED in Weyl semi-metals. https://doi.org/10.1103/physrevd.86.045001

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