Vacuum induced transparency and photon number resolved Autler-Townes splitting in a three-level system

Abstract We study the absorption spectrum of a probe field by a Λ-type three-level system, which is coupled to a quantized control field through the two upper energy levels. The probe field is applied to the ground and the second excited states. When the quantized control field is in vacuum, we deri...

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Autores principales:	Jiang-hao Ding, Sai-nan Huai, Hou Ian, Yu-xi Liu
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2018
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/e48830ecb6364b15b1926ea93fe232bd
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spelling	oai:doaj.org-article:e48830ecb6364b15b1926ea93fe232bd2021-12-02T15:08:11ZVacuum induced transparency and photon number resolved Autler-Townes splitting in a three-level system10.1038/s41598-018-22666-22045-2322https://doaj.org/article/e48830ecb6364b15b1926ea93fe232bd2018-03-01T00:00:00Zhttps://doi.org/10.1038/s41598-018-22666-2https://doaj.org/toc/2045-2322Abstract We study the absorption spectrum of a probe field by a Λ-type three-level system, which is coupled to a quantized control field through the two upper energy levels. The probe field is applied to the ground and the second excited states. When the quantized control field is in vacuum, we derive a threshold condition to discern vacuum induced transparency (VIT) and vacuum induced Autler-Townes splitting (ATS). We also find that the parameter changing from VIT to vacuum induced ATS is very similar to that from broken PT symmetry to PT symmetry. Moreover, we find the photon number resolved spectrum in the parameter regime of vacuum induced ATS when the mean photon number of the quantized control field is changed from zero (vacuum) to a finite number. However, there is no photon number resolved spectrum in the parameter regime of VIT even that the quantized control field contains the finite number of photons. Finally, we further discuss possible experimental realization.Jiang-hao DingSai-nan HuaiHou IanYu-xi LiuNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-15 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Jiang-hao Ding Sai-nan Huai Hou Ian Yu-xi Liu Vacuum induced transparency and photon number resolved Autler-Townes splitting in a three-level system
description	Abstract We study the absorption spectrum of a probe field by a Λ-type three-level system, which is coupled to a quantized control field through the two upper energy levels. The probe field is applied to the ground and the second excited states. When the quantized control field is in vacuum, we derive a threshold condition to discern vacuum induced transparency (VIT) and vacuum induced Autler-Townes splitting (ATS). We also find that the parameter changing from VIT to vacuum induced ATS is very similar to that from broken PT symmetry to PT symmetry. Moreover, we find the photon number resolved spectrum in the parameter regime of vacuum induced ATS when the mean photon number of the quantized control field is changed from zero (vacuum) to a finite number. However, there is no photon number resolved spectrum in the parameter regime of VIT even that the quantized control field contains the finite number of photons. Finally, we further discuss possible experimental realization.
format	article
author	Jiang-hao Ding Sai-nan Huai Hou Ian Yu-xi Liu
author_facet	Jiang-hao Ding Sai-nan Huai Hou Ian Yu-xi Liu
author_sort	Jiang-hao Ding
title	Vacuum induced transparency and photon number resolved Autler-Townes splitting in a three-level system
title_short	Vacuum induced transparency and photon number resolved Autler-Townes splitting in a three-level system
title_full	Vacuum induced transparency and photon number resolved Autler-Townes splitting in a three-level system
title_fullStr	Vacuum induced transparency and photon number resolved Autler-Townes splitting in a three-level system
title_full_unstemmed	Vacuum induced transparency and photon number resolved Autler-Townes splitting in a three-level system
title_sort	vacuum induced transparency and photon number resolved autler-townes splitting in a three-level system
publisher	Nature Portfolio
publishDate	2018
url	https://doaj.org/article/e48830ecb6364b15b1926ea93fe232bd
work_keys_str_mv	AT jianghaoding vacuuminducedtransparencyandphotonnumberresolvedautlertownessplittinginathreelevelsystem AT sainanhuai vacuuminducedtransparencyandphotonnumberresolvedautlertownessplittinginathreelevelsystem AT houian vacuuminducedtransparencyandphotonnumberresolvedautlertownessplittinginathreelevelsystem AT yuxiliu vacuuminducedtransparencyandphotonnumberresolvedautlertownessplittinginathreelevelsystem
_version_	1718388287197937664

Vacuum induced transparency and photon number resolved Autler-Townes splitting in a three-level system

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