Bulletin of the American Physical Society
52nd Annual Meeting of the APS Division of Atomic, Molecular and Optical Physics
Volume 66, Number 6
Monday–Friday, May 31–June 4 2021; Virtual; Time Zone: Central Daylight Time, USA
Session X07: Quantum Gases in Low Dimensions
8:00 AM–10:00 AM,
Friday, June 4, 2021
Chair: Cheng Chin, U Chicago
Abstract: X07.00003 : Simulating Many-Body Open Quantum Systems Beyond the Born-Markov Approximation*
8:24 AM–8:36 AM
Live
Presenter:
Stuart Flannigan
(University of Strathclyde)
Authors:
Stuart Flannigan
(University of Strathclyde)
François Damanet
(University of Liège, Belgium)
Andrew Daley
(University of Strathclyde)
Here we combine the recently developed algorithm the hierarchy of pure states (HOPS) [1] and tensor network methods which now allow us to simulate open many-body systems (in 1D) that are strongly coupled to a non-Markovian reservoir. As a first example, we benchmark this method by applying it to a Hubbard-Holstein model with dissipative phonon modes, where we demonstrate that this approach can capture features beyond what is capable with standard open quantum system techniques. We also discuss future generalisations of this method which for example may allow for the simulation of current experiments exploring the dynamics of impurity atoms immersed in Bose-Einstein condensates.
[1] - D. Suess, et. al, PRL 113, 150403 (2014)
*This work was supported in part by the EPSRC Programme Grant DesOEQ (EP/P009565/1)
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