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 V01: Poster Session III 4pm-6pm CDT
4:00 PM,
Thursday, June 3, 2021
Abstract: V01.00067 : Semiclassical Lindblad master equation for spin dynamics
Presenter:
Jonathan Dubois
(Max Planck Institute for the Physics of Complex Systems)
Authors:
Jonathan Dubois
(Max Planck Institute for the Physics of Complex Systems)
Ulf Saalmann
(Max Planck Institute for the Physics of Complex Systems)
Jan M Rost
(Max Planck Institute for the Physics of Complex Systems)
In general, the simulation of the LME in the thermodynamic limit takes extremely long time and is numerically demanding. However, classical behavior of open systems often facilitates to understand their quantum dynamics and the nonlinear phenomena observed in experiments. Here, we build a bridge to the classical phenomena with semi-classical master equations derived from the LME. To do so, we formulate the LME in the Wigner-Moyal formalism and derive its semi-classical limit for canonical and non-canonical Poisson brackets using the Moyal-star product. Semiclassical master equations can capture inherent quantum effects in the thermodynamic limit and allow us to identify connections between microscopic and macroscopic scales.
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