Non-Markovian speedup dynamics control of the damped Jaynes-Cummings model with detuning

doi:10.1088/1674-1056/27/1/010302

Abstract For a two-level atom in a lossy cavity, a scheme to manipulate the non-Markovian speedup dynamics has been proposed in the controllable environment (the lossy cavity field). We mainly focus on the effects of the qubit-cavity detuning △ and the qubit-cavity coupling strength κ on the non-Markovian speedup evolution of an open system. By controlling the environment, i.e., tuning △ and κ, two dynamical crossovers from Markovian to non-Markovian and from no-speedup to speedup are achieved. Furthermore, it is clearly found that increasing the coupling strength κ or detuning △ in some cases can make the environmental non-Markovianity stronger and hence can lead to faster evolution of the open system.

Keywords: non-Markovianity quantum speed limits open system dynamics

Received: 14 September 2017
Revised: 16 October 2017
Accepted manuscript online:

PACS:	03.65.Yz	(Decoherence; open systems; quantum statistical methods)
	03.67.-a	(Quantum information)

Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 11647171, 61675115, and 91536108).

Corresponding Authors: Ying-Jie Zhang
E-mail: yingjiezhang@mail.qfnu.edu.cn

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Kai Xu(徐凯), Wei Han(韩伟), Ying-Jie Zhang(张英杰), Heng Fan(范桁) Non-Markovian speedup dynamics control of the damped Jaynes-Cummings model with detuning 2018 Chin. Phys. B 27 010302

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Non-Markovian speedup dynamics control of the damped Jaynes-Cummings model with detuning

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