Dissemin is shutting down on January 1st, 2025

Published in

American Physical Society, Physical Review A, 5(69)

DOI: 10.1103/physreva.69.052104

Links

Tools

Export citation

Search in Google Scholar

Jumplike unravelings for non-Markovian open quantum systems

Journal article published in 2004 by Jay Gambetta, T. Askerud, H. M. Wiseman ORCID
This paper is available in a repository.
This paper is available in a repository.

Full text: Download

Green circle
Preprint: archiving allowed
Green circle
Postprint: archiving allowed
Green circle
Published version: archiving allowed
Data provided by SHERPA/RoMEO

Abstract

Non-Markovian evolution of an open quantum system can be "unraveled" into pure state trajectories generated by a non-Markovian stochastic (diffusive) Schrodinger equation, as introduced by DiÓsi, Gisin, and Strunz. Recently we have shown that such equations can be derived using the modal (hidden variable) interpretation of quantum mechanics. In this paper we generalize this theory to treat jumplike unravelings. To illustrate the jumplike behavior we consider a simple system: a classically driven (at Rabi frequency Ω) two-level atom coupled linearly to a three mode optical bath, with a central frequency equal to the frequency of the atom, ω0, and the two side bands have frequencies ω0′Ω. In the large Ω limit we observed that the jumplike behavior is similar to that observed in this system with a Markovian (broad band) bath. This is expected as in the Markovian limit the fluorescence spectrum for a strongly driven two level atom takes the form of a Mollow triplet. However, the length of time for which the Markovian-like behavior persists depends upon which jumplike unraveling is used. Yes Yes