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

被引：229

作者：

Grushin, Adolfo G. ^{[1
]}

机构：

[1] CSIC, Inst Ciencia Mat Madrid, E-28049 Madrid, Spain

来源：

PHYSICAL REVIEW D | 2012年 / 86卷 / 04期

关键词：

RADIATIVELY-INDUCED LORENTZ; CPT VIOLATION; LATTICE; NEUTRINOS; SURFACE; ABSENCE;

D O I：

10.1103/PhysRevD.86.045001

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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.

引用

页数：7

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