Single-impurity-induced Dicke quantum phase transition in a cavity-Bose-Einstein condensate

Abstract We present a new generalized Dicke model, an impurity-doped Dicke model (IDDM), by the use of an impurity-doped cavity-Bose-Einstein condensate (BEC). It is shown that the impurity atom can induce Dicke quantum phase transition (QPT) from the normal phase to superradiant phase at a critic v...

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Autores principales:	Ji-Bing Yuan, Wang-Jun Lu, Ya-Ju Song, Le-Man Kuang
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/ef9a3fccd0784c2b87df08a831a031a4
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spelling	oai:doaj.org-article:ef9a3fccd0784c2b87df08a831a031a42021-12-02T16:07:57ZSingle-impurity-induced Dicke quantum phase transition in a cavity-Bose-Einstein condensate10.1038/s41598-017-07899-x2045-2322https://doaj.org/article/ef9a3fccd0784c2b87df08a831a031a42017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-07899-xhttps://doaj.org/toc/2045-2322Abstract We present a new generalized Dicke model, an impurity-doped Dicke model (IDDM), by the use of an impurity-doped cavity-Bose-Einstein condensate (BEC). It is shown that the impurity atom can induce Dicke quantum phase transition (QPT) from the normal phase to superradiant phase at a critic value of the impurity population. It is found that the impurity-induced Dicke QPT can happen in an arbitrary field-atom coupling regime while the Dicke QPT in the standard Dicke model occurs only in the strong coupling regime of the cavity field and atoms. This opens the possibility to realize the control of quantum properties of a macroscopic-quantum system (BEC) by using a microscopic quantum system (a single impurity atom).Ji-Bing YuanWang-Jun LuYa-Ju SongLe-Man KuangNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-9 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Ji-Bing Yuan Wang-Jun Lu Ya-Ju Song Le-Man Kuang Single-impurity-induced Dicke quantum phase transition in a cavity-Bose-Einstein condensate
description	Abstract We present a new generalized Dicke model, an impurity-doped Dicke model (IDDM), by the use of an impurity-doped cavity-Bose-Einstein condensate (BEC). It is shown that the impurity atom can induce Dicke quantum phase transition (QPT) from the normal phase to superradiant phase at a critic value of the impurity population. It is found that the impurity-induced Dicke QPT can happen in an arbitrary field-atom coupling regime while the Dicke QPT in the standard Dicke model occurs only in the strong coupling regime of the cavity field and atoms. This opens the possibility to realize the control of quantum properties of a macroscopic-quantum system (BEC) by using a microscopic quantum system (a single impurity atom).
format	article
author	Ji-Bing Yuan Wang-Jun Lu Ya-Ju Song Le-Man Kuang
author_facet	Ji-Bing Yuan Wang-Jun Lu Ya-Ju Song Le-Man Kuang
author_sort	Ji-Bing Yuan
title	Single-impurity-induced Dicke quantum phase transition in a cavity-Bose-Einstein condensate
title_short	Single-impurity-induced Dicke quantum phase transition in a cavity-Bose-Einstein condensate
title_full	Single-impurity-induced Dicke quantum phase transition in a cavity-Bose-Einstein condensate
title_fullStr	Single-impurity-induced Dicke quantum phase transition in a cavity-Bose-Einstein condensate
title_full_unstemmed	Single-impurity-induced Dicke quantum phase transition in a cavity-Bose-Einstein condensate
title_sort	single-impurity-induced dicke quantum phase transition in a cavity-bose-einstein condensate
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/ef9a3fccd0784c2b87df08a831a031a4
work_keys_str_mv	AT jibingyuan singleimpurityinduceddickequantumphasetransitioninacavityboseeinsteincondensate AT wangjunlu singleimpurityinduceddickequantumphasetransitioninacavityboseeinsteincondensate AT yajusong singleimpurityinduceddickequantumphasetransitioninacavityboseeinsteincondensate AT lemankuang singleimpurityinduceddickequantumphasetransitioninacavityboseeinsteincondensate
_version_	1718384691707379712

Single-impurity-induced Dicke quantum phase transition in a cavity-Bose-Einstein condensate

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