Return to equilibrium for some quantum trajectories

Abstract

We consider the situation of a two-level quantum system undergoing a continuous indirect measurement, giving rise to so-called "quantum trajectories". We first describe these quantum trajectories in a physically realistic discrete-time setup and we then justify, by going to the continuous-time limit, the "stochastic Schrödinger equation" attached to this model. We prove return to equilibrium properties for these equations.

24 pages

References in corpus (3)

• Continuous quantum measurement and Itô formalism
• Existence, uniqueness and approximation of a stochastic Schrödinger equation: the diffusive case
• Stochastic Master Equations in Thermal Environment