Quantum Physics
[Submitted on 20 Dec 2018
(v1)
, last revised 24 Feb 2019 (this version, v2)]
Title: Shortcut to Equilibration of an Open Quantum System
Title: 开放量子系统的快速平衡方法
Abstract: We present a procedure to accelerate the relaxation of an open quantum system towards its equilibrium state. The control protocol, termed Shortcut to Equilibration, is obtained by reverse-engineering the non-adiabatic master equation. This is a non-unitary control task aimed at rapidly changing the entropy of the system. Such a protocol serves as a shortcut to an abrupt change in the Hamiltonian, i.e., a quench. As an example, we study the thermalization of a particle in a harmonic well. We observe that for short protocols there is a three orders of magnitude improvement in accuracy.
Submission history
From: Roie Dann [view email][v1] Thu, 20 Dec 2018 19:59:33 UTC (2,709 KB)
[v2] Sun, 24 Feb 2019 14:00:25 UTC (3,162 KB)
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