Bulletin of the American Physical Society
2023 APS March Meeting
Volume 68, Number 3
Las Vegas, Nevada (March 5-10)
Virtual (March 20-22); Time Zone: Pacific Time
Session S66: Open Quantum Systems II
8:00 AM–11:00 AM,
Thursday, March 9, 2023
Room: Room 413
Sponsoring
Unit:
DAMOP
Chair: Guoqing Wang, Massachusetts Institute of Technology MI
Abstract: S66.00004 : Dissipative dynamics of an impurity with spin-orbit coupling*
9:00 AM–9:12 AM
Author not Attending
Presenter:
Alberto Cappellaro
(Institute of Science and Technology Austria)
Author:
Alberto Cappellaro
(Institute of Science and Technology Austria)
In addition, we suggest that the interplay between SOC and dissipation can be studied with cold-atom quantum simulators. A spin-orbit-coupled impurity in a Bose gas naturally reveals this interplay. A prerequisite for engineering such a quantum simulator is a theoretical tool that can be used to understand parameter regimes and relevant observables, and such a tool is presented and validated in our work.
First, we derive a master equation based upon an extended Caldeira-Leggett model. Second, we validate the applicability of this equation, making use of available experimental data (without SOC) for an impurity in a Bose gas, whose explanation posed a long-standing problem for theoreticians. Our method explains all features of the data, puts limits on formation of the Bose polaron, and suggests new experiments to study renormalization of the parameters of the impurity. Third, we show that a near-term experiment (with SOC) will be able to detect formation of domains of steady spin polarization by analyzing population of involved hyperfine levels.
*- European Research Council (ERC) Starting Grant No. 801770 (ANGULON)
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