Chiral magnetic effect of light

Tomoya Hayata
Phys. Rev. B 97, 205102 – Published 3 May 2018
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Abstract

We study a photonic analog of the chiral magnetic (vortical) effect. We discuss that the vector component of magnetoelectric tensors plays a role of “vector potential,” and its rotation is understood as “magnetic field” of a light. Using the geometrical optics approximation, we show that “magnetic fields” cause an anomalous shift of a wave packet of a light through an interplay with the Berry curvature of photons. The mechanism is the same as that of the chiral magnetic (vortical) effect of a chiral fermion, so that we term the anomalous shift “chiral magnetic effect of a light.” We further study the chiral magnetic effect of a light beyond geometric optics by directly solving the transmission problem of a wave packet at a surface of a magnetoelectric material. We show that the experimental signal of the chiral magnetic effect of a light is the nonvanishing of transverse displacements for the beam normally incident to a magnetoelectric material.

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  • Received 7 June 2017

DOI:https://doi.org/10.1103/PhysRevB.97.205102

©2018 American Physical Society

Physics Subject Headings (PhySH)

Nonlinear DynamicsCondensed Matter, Materials & Applied Physics

Authors & Affiliations

Tomoya Hayata

  • Department of Physics, Chuo University, 1-13-27 Kasuga, Bunkyo, Tokyo 112-8551, Japan

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Issue

Vol. 97, Iss. 20 — 15 May 2018

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