Nonequilibrium Steady State Generated by a Moving Defect: The Supersonic Threshold
Author(s): Alvise Bastianello and Andrea De Luca
We consider the dynamics of a system of free fermions on a 1D lattice in the presence of a defect moving at constant velocity. The defect has the form of a localized time-dependent variation of the chemical potential and induces at long times a nonequilibrium steady state (NESS), which spreads aroun...
[Phys. Rev. Lett. 120, 060602] Published Thu Feb 08, 2018