Anomaly-Induced Dynamical Refringence in Strong-Field QED

Abstract:

We present a first-principles study of anomaly induced transport phenomena by performing real-time lattice simulations with dynamical fermions coupled simultaneously to non-Abelian SU(N_c) and Abelian U(1)gauge fields. Investigating the behavior of vector and axial currents during a sphaleron transition in the presence of an external magnetic field, we demonstrate how the interplay of the chiral magnetic and chiral separation effect leads to the formation of a propagating wave. We further analyze the dependence of the magnitude of the induced vector current and the propagation of the wave on the amount of explicit chiral symmetry breaking due to finite quark masses.

Niklas Müller, Sören Schlichting, and Sayantan Sharma: Anomaly-Induced Dynamical Refringence in Strong-Field QED, Phys. Rev. Lett. 117 (2016) 142301

https://doi.org/10.1103/PhysRevLett.117.142301

Related to Project A01