Quasiparticles, coherence, and nonlinearity

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.author Leskinen, M.
dc.contributor.author Apaja, V.
dc.contributor.author Kajala, J.
dc.contributor.author Törmä, Päivi
dc.date.accessioned 2016-09-23T09:22:04Z
dc.date.issued 2008-08-01
dc.identifier.citation Leskinen , M , Apaja , V , Kajala , J & Törmä , P 2008 , ' Quasiparticles, coherence, and nonlinearity : Exact simulations of RF-spectroscopy of strongly interacting one-dimensional Fermi gases ' PHYSICAL REVIEW A , vol 78 , no. 2 , 023602 , pp. 1-4 . DOI: 10.1103/PhysRevA.78.023602 en
dc.identifier.issn 1050-2947
dc.identifier.issn 1094-1622
dc.identifier.other PURE UUID: 54d65b80-7878-4cb2-bcf2-55170bc590f0
dc.identifier.other PURE ITEMURL: https://research.aalto.fi/en/publications/quasiparticles-coherence-and-nonlinearity(54d65b80-7878-4cb2-bcf2-55170bc590f0).html
dc.identifier.other PURE LINK: http://www.scopus.com/inward/record.url?scp=49249138329&partnerID=8YFLogxK
dc.identifier.other PURE FILEURL: https://research.aalto.fi/files/2477565/PhysRevA.78.pdf
dc.identifier.uri https://aaltodoc.aalto.fi/handle/123456789/22417
dc.description.abstract We consider rf spectroscopy of ultracold Fermi gases by exact simulations of the many-body state and the coherent dynamics in one dimension. Deviations from the linear response sum rule result are found to suppress the pairing contribution to the rf line shifts. We compare the coherent rotation and quasiparticle descriptions of rf spectroscopy which are analogous to NMR experiments in superfluid He3 and tunneling in solids, respectively. We suggest that rf spectroscopy in ultracold gases provides an interesting crossover between these descriptions that could be used for studying decoherence in quantum measurement, in the context of many-body quantum states. en
dc.format.extent 4
dc.format.extent 1-4
dc.format.mimetype application/pdf
dc.language.iso en en
dc.relation.ispartofseries PHYSICAL REVIEW A en
dc.relation.ispartofseries Volume 78, issue 2 en
dc.rights openAccess en
dc.subject.other Atomic and Molecular Physics, and Optics en
dc.subject.other Physics and Astronomy(all) en
dc.title Quasiparticles, coherence, and nonlinearity en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.contributor.department School services, SCI
dc.contributor.department Department of Applied Physics
dc.subject.keyword Atomic and Molecular Physics, and Optics
dc.subject.keyword Physics and Astronomy(all)
dc.identifier.urn URN:NBN:fi:aalto-201609234420
dc.identifier.doi 10.1103/PhysRevA.78.023602
dc.type.version publishedVersion

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