Lindblad Dynamics and Disentanglement in Multi-Mode Bosonic Systems

In this paper, we consider the thermal bath Lindblad master equation to describe the quantum nonunitary dynamics of quantum states in a multi-mode bosonic system. For the two-mode bosonic system interacting with an environment, we analyse how both the coupling between the modes and the coupling with...

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Autores principales:	Alexei D. Kiselev, Ranim Ali, Andrei V. Rybin
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	open quantum systems Lindblad equation disentanglement Science Q Astrophysics QB460-466 Physics QC1-999
Acceso en línea:	https://doaj.org/article/6d607c35e0084196bf4dbadd26c635ed
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spelling	oai:doaj.org-article:6d607c35e0084196bf4dbadd26c635ed2021-11-25T17:29:26ZLindblad Dynamics and Disentanglement in Multi-Mode Bosonic Systems10.3390/e231114091099-4300https://doaj.org/article/6d607c35e0084196bf4dbadd26c635ed2021-10-01T00:00:00Zhttps://www.mdpi.com/1099-4300/23/11/1409https://doaj.org/toc/1099-4300In this paper, we consider the thermal bath Lindblad master equation to describe the quantum nonunitary dynamics of quantum states in a multi-mode bosonic system. For the two-mode bosonic system interacting with an environment, we analyse how both the coupling between the modes and the coupling with the environment characterised by the frequency and the relaxation rate vectors affect dynamics of the entanglement. We discuss how the revivals of entanglement can be induced by the dynamic coupling between the different modes. For the system, initially prepared in a two-mode squeezed state, we find the logarithmic negativity as defined by the magnitude and orientation of the frequency and the relaxation rate vectors. We show that, in the regime of finite-time disentanglement, reorientation of the relaxation rate vector may significantly increase the time of disentanglement.Alexei D. KiselevRanim AliAndrei V. RybinMDPI AGarticleopen quantum systemsLindblad equationdisentanglementScienceQAstrophysicsQB460-466PhysicsQC1-999ENEntropy, Vol 23, Iss 1409, p 1409 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	open quantum systems Lindblad equation disentanglement Science Q Astrophysics QB460-466 Physics QC1-999
spellingShingle	open quantum systems Lindblad equation disentanglement Science Q Astrophysics QB460-466 Physics QC1-999 Alexei D. Kiselev Ranim Ali Andrei V. Rybin Lindblad Dynamics and Disentanglement in Multi-Mode Bosonic Systems
description	In this paper, we consider the thermal bath Lindblad master equation to describe the quantum nonunitary dynamics of quantum states in a multi-mode bosonic system. For the two-mode bosonic system interacting with an environment, we analyse how both the coupling between the modes and the coupling with the environment characterised by the frequency and the relaxation rate vectors affect dynamics of the entanglement. We discuss how the revivals of entanglement can be induced by the dynamic coupling between the different modes. For the system, initially prepared in a two-mode squeezed state, we find the logarithmic negativity as defined by the magnitude and orientation of the frequency and the relaxation rate vectors. We show that, in the regime of finite-time disentanglement, reorientation of the relaxation rate vector may significantly increase the time of disentanglement.
format	article
author	Alexei D. Kiselev Ranim Ali Andrei V. Rybin
author_facet	Alexei D. Kiselev Ranim Ali Andrei V. Rybin
author_sort	Alexei D. Kiselev
title	Lindblad Dynamics and Disentanglement in Multi-Mode Bosonic Systems
title_short	Lindblad Dynamics and Disentanglement in Multi-Mode Bosonic Systems
title_full	Lindblad Dynamics and Disentanglement in Multi-Mode Bosonic Systems
title_fullStr	Lindblad Dynamics and Disentanglement in Multi-Mode Bosonic Systems
title_full_unstemmed	Lindblad Dynamics and Disentanglement in Multi-Mode Bosonic Systems
title_sort	lindblad dynamics and disentanglement in multi-mode bosonic systems
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/6d607c35e0084196bf4dbadd26c635ed
work_keys_str_mv	AT alexeidkiselev lindbladdynamicsanddisentanglementinmultimodebosonicsystems AT ranimali lindbladdynamicsanddisentanglementinmultimodebosonicsystems AT andreivrybin lindbladdynamicsanddisentanglementinmultimodebosonicsystems
_version_	1718412290844262400

Lindblad Dynamics and Disentanglement in Multi-Mode Bosonic Systems

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