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Article: Squeezing based analytical variational method for the biased quantum Rabi model in the ultrastrong coupling regime

TitleSqueezing based analytical variational method for the biased quantum Rabi model in the ultrastrong coupling regime
Authors
Xie, WMao, BBLi, GWang, WSun, CWang, YYou, WLLiu, M
Keywordsbiased quantum Rabi model
squeezing
ultrastrong coupling
variational method
Issue Date2020
PublisherInstitute of Physics Publishing Ltd. The Journal's web site is located at http://iopscience.iop.org/1751-8121/
Citation
Journal of Physics A: Mathematical and Theoretical, 2020, v. 53 n. 9, p. article no. 095302 How to Cite?
DOI: http://dx.doi.org/10.1088/1751-8121/ab4b7a
AbstractIn order to obtain the ground state of the biased quantum Rabi model in the ultrastrong coupling regime, a generalized squeezing rotating-wave approximation method including the displacement and the squeezing transformations is proposed in this work. While considering the deformation of the oscillator state, our method evidently improves the generalized variational method. The analyses of a few physical quantities show that our method works well especially in the ultrastrong coupling and large atomic frequency regime.
Persistent Identifierhttp://hdl.handle.net/10722/284597
ISSN
1751-8113
2022 Impact Factor: 2.1
2020 SCImago Journal Rankings: 0.787
ISI Accession Number ID
WOS:000537479500001

 

DC FieldValueLanguage
dc.contributor.authorXie, W-
dc.contributor.authorMao, BB-
dc.contributor.authorLi, G-
dc.contributor.authorWang, W-
dc.contributor.authorSun, C-
dc.contributor.authorWang, Y-
dc.contributor.authorYou, WL-
dc.contributor.authorLiu, M-
dc.date.accessioned2020-08-07T08:59:55Z-
dc.date.available2020-08-07T08:59:55Z-
dc.date.issued2020-
dc.identifier.citationJournal of Physics A: Mathematical and Theoretical, 2020, v. 53 n. 9, p. article no. 095302-
dc.identifier.issn1751-8113-
dc.identifier.urihttp://hdl.handle.net/10722/284597-
dc.description.abstractIn order to obtain the ground state of the biased quantum Rabi model in the ultrastrong coupling regime, a generalized squeezing rotating-wave approximation method including the displacement and the squeezing transformations is proposed in this work. While considering the deformation of the oscillator state, our method evidently improves the generalized variational method. The analyses of a few physical quantities show that our method works well especially in the ultrastrong coupling and large atomic frequency regime.-
dc.languageeng-
dc.publisherInstitute of Physics Publishing Ltd. The Journal's web site is located at http://iopscience.iop.org/1751-8121/-
dc.relation.ispartofJournal of Physics A: Mathematical and Theoretical-
dc.rightsJournal of Physics A: Mathematical and Theoretical. Copyright © Institute of Physics Publishing Ltd.-
dc.rightsThis is an author-created, un-copyedited version of an article published in [insert name of journal]. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at http://dx.doi.org/[insert DOI].-
dc.subjectbiased quantum Rabi model-
dc.subjectsqueezing-
dc.subjectultrastrong coupling-
dc.subjectvariational method-
dc.titleSqueezing based analytical variational method for the biased quantum Rabi model in the ultrastrong coupling regime-
dc.typeArticle-
dc.identifier.emailMao, BB: maobb@hku.hk-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1088/1751-8121/ab4b7a-
dc.identifier.scopuseid_2-s2.0-85081374659-
dc.identifier.hkuros312399-
dc.identifier.volume53-
dc.identifier.issue9-
dc.identifier.spagearticle no. 095302-
dc.identifier.epagearticle no. 095302-
dc.identifier.isiWOS:000537479500001-
dc.publisher.placeUnited Kingdom-
dc.identifier.issnl1751-8113-

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