Publication
Title
Gaussian quantum trajectories for the variational simulation of open quantum-optical systems
Author
Abstract
We construct a class of variational methods for the study of open quantum systems based on Gaussian ansatzes for the quantum trajectory formalism. Gaussianity in the conjugate position and momentum quadratures is distinguished from Gaussianity in density and phase. We apply these methods to a driven-dissipative Kerr cavity where we study dephasing and the stationary states throughout the bistability regime. Computational cost proves to be similar to the Truncated Wigner Approximation (TWA) method, with at most quadratic scaling in system size. Meanwhile, strong correspondence with the numerically-exact trajectory description is maintained so that these methods contain more information on the ensemble constitution than TWA and can be more robust.
Language
English
Source (journal)
Applied Sciences. - -
Applied Sciences. - -
Publication
2018
ISSN
2076-3417
Volume/pages
8 :9 (2018) , 21 p.
Article Reference
1427
ISI
000445760200016
Medium
E-only publicatie
Full text (Publisher's DOI)
Full text (open access)
UAntwerpen
Faculty/Department
Research group
Project info
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identification
Creation 29.10.2018
Last edited 19.09.2021
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