Show simple item record

dc.contributor.authorDutta, Shovan
dc.contributor.authorMueller, Erich J
dc.date.accessioned2019-11-26T00:30:13Z
dc.date.available2019-11-26T00:30:13Z
dc.date.issued2013-11-04
dc.identifier.issn1050-2947
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/299213
dc.description.abstractWe use variational methods to study a spin impurity in a 1D Bose lattice gas. Both in the strongly interacting superfluid regime and the Mott regime we find that the impurity binds with a hole, forming a polaron. Our calculations for the dispersion of the polaron are consistent with recent experiments by Fukuhara et. al. [Nature Phys. 9, 235 (2013)] and give a better understanding of their numerical simulations. We find that for sufficiently weak interactions there are ranges of momentum for which the polaron is unstable. We propose experimentally studying the stability of the polaron by measuring the correlation between the impurity and holes. We also study two interacting impurities, finding stable bipolarons for sufficiently strong interactions.
dc.description.sponsorshipNational Science Foundation Grant No. PHY-1068165 and Dr. V. Ramachandra Rao Summer Fellowship at Cornell University
dc.publisherAmerican Physical Society (APS)
dc.rightsPublisher's own licence
dc.titleVariational study of polarons and bipolarons in a one-dimensional Bose lattice gas in both the superfluid and the Mott-insulator regimes
dc.typeArticle
prism.issueIdentifier5
prism.numberARTN 053601
prism.publicationDate2013
prism.publicationNamePHYSICAL REVIEW A
prism.volume88
dc.identifier.doi10.17863/CAM.46278
dcterms.dateAccepted2013-10-07
rioxxterms.versionofrecord10.1103/PhysRevA.88.053601
rioxxterms.versionVoR
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserved
rioxxterms.licenseref.startdate2013-11-04
dc.contributor.orcidDutta, Shovan [0000-0002-3534-6920]
dc.identifier.eissn1094-1622
dc.publisher.urlhttp://dx.doi.org/10.1103/PhysRevA.88.053601
rioxxterms.typeJournal Article/Review
cam.issuedOnline2013-11-04


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record