Open system model for quantum dynamical maps with classical noise and corresponding master equations

Chahan M. Kropf, Vyacheslav N. Shatokhin, Andreas Buchleitner

Published 2017-11-05Version 1

We show how random unitary dynamics arise from the coupling of an open quantum system to a static environment. Subsequently, we derive a master equation for the reduced system random unitary dynamics and study three specific cases: commuting system and interaction Hamiltonians, the short-time limit, and the Markov approximation.