Axial Magnetic Effect and Chiral Vortical Effect with free lattice chiral fermions

Abstract

Following the recent work by Braguta et al., we perform an indirect calculation of the chiral vortical conductivity with free lattice overlap fermions by measuring the response of the energy flow to the constant axial magnetic field. We find that the measurements are contaminated by very large finite-volume artifacts. However, the continuum result for finite-temperature contribution to the chiral vortical conductivity (T^2/12) is still reproduced in the limit of infinite volume at fixed temperature.

Comments: 4 pages, 2 figures; To appear in the proceedings of the International Moscow Phenomenology Workshop devoted to the memory of Prof. A. Kaidalov (21 - 25 July 2013, Moscow, Russia)