title: Non-Markovian relaxation of a three-level system: quantum trajectory approach.
abstract: The non-Markovian dynamics of a three-level quantum system coupled to a bosonic environment is a difficult problem due to the lack of an exact dynamic equation such as a master equation. We present for the first time an exact quantum trajectory approach to a dissipative three-level model. We have established a convolutionless stochastic Schrödinger equation called the time-local quantum state diffusion (QSD) equation without any approximations, in particular, without Markov approximation. Our exact time-local QSD equation opens a new avenue for exploring quantum dynamics for a higher dimensional quantum system coupled to a non-Markovian environment.
authors.affiliation: Center for Controlled Quantum Systems and Department of Physics and Engineering Physics, Stevens Institute of Technology, Hoboken, New Jersey 07030, USA. Jun.Jing@stevens.edu
authors.forename: Jun
authors.initials: J
authors.lastname: Jing
authors.forename: Ting
authors.initials: T
authors.lastname: Yu