Parity-odd effects and polarization rotation in graphene

Details Parity-odd effects and polarization rotation in graphene Parity-odd effects and polarization rotation in graphene

2009-02-15

arxiv.org/abs/0902.2570v1

J.Phys.A42:442001,2009

Physics

High Energy Physics

High Energy Physics - Theory

8 pages

Scientific paper

10.1088/1751-8113/42/44/442001

We show that the presence of parity-odd terms in the conductivity (or, in other words, in the polarization tensor of Dirac quasiparticles in graphene) leads to rotation of polarization of the electromagnetic waves passing through suspended samples of graphene. Parity-odd Chern-Simons type contributions appear in external magnetic field, giving rise to a quantum Faraday effect (though other sources of parity-odd effects may also be discussed). The estimated order of the effect is well above the sensitivity limits of modern optical instruments.

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