Linear quantum state diffusion for non-Markovian open quantum systems

1996/10/22 by Walter T. Strunz · 4 citations
Computer Science · Physics and Astronomy · #Advanced Thermodynamics and Statistical Mechanics #Quantum Information and Cryptography #Quantum Mechanics and Applications #quant-ph

paper · pdf · doi:10.1016/s0375-9601(96)00805-5

9 pages, RevTeX, appears in Physics Letters A

arxiv created 1996/10/22 · openalex publication_date 1996/12/01 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/30

Abstract

We demonstrate the relevance of complex Gaussian stochastic processes to the stochastic state vector description of non-Markovian open quantum systems. These processes express the general Feynman-Vernon path integral propagator for open quantum systems as the classical ensemble average over stochastic pure state propagators in a natural way. They are the coloured generalization of complex Wiener processes in quantum state diffusion stochastic Schrodinger equations.

Cited by

• Stochastic Schrödinger equations with general complex Gaussian noises
• Open System Dynamics with Non-Markovian Quantum Trajectories
• Time-local unraveling of non-Markovian stochastic Schrödinger equations
• General framework for the behaviour of continuously observed open quantum systems