Quantum harmonically kicked environments

Custodio, M. S.; Strunz, W. T.; Beims, Marcus W.

doi:10.1016/j.physa.2017.05.094

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Quantum harmonically kicked environments

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Beims, Marcus W.
Max Planck Institute for the Physics of Complex Systems, Max Planck Society;

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http://www.sciencedirect.com/science/article/pii/S0378437117306131
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Custodio, M. S., Strunz, W. T., & Beims, M. W. (2017). Quantum harmonically kicked environments. Physica A, 486, 337-346. doi:10.1016/j.physa.2017.05.094.

Cite as: https://hdl.handle.net/11858/00-001M-0000-002E-0FA7-4

Abstract

In this work we derive a generalized map which describes the time evolution of a quantum system coupled to a quantum environment composed by a finite number of free particles kicked harmonically at periodic times. Dissipation is introduced via the interaction between system and environment, which is switched on and off simultaneously at regular time intervals. The dynamics of the environmental particles occurs along rotated ellipsis in phase space and can be described by unrotated harmonic oscillators with a new frequency which depends on the kicking time. With the definition of a thermal bath we show that our quantum kicked environment induces an unusual fluctuation-dissipation relation. (C) 2017 Elsevier B.V. All rights reserved.