Entanglement of two harmonic modes coupled by angular momentum

cic.isFulltexttruees
cic.isPeerReviewedtruees
cic.lugarDesarrolloUniversidad Nacional de La Plata es
cic.versioninfo:eu-repo/semantics/submittedVersiones
dc.date.accessioned2016-09-13T11:11:03Z
dc.date.available2016-09-13T11:11:03Z
dc.identifier.urihttps://digital.cic.gba.gob.ar/handle/11746/4214
dc.titleEntanglement of two harmonic modes coupled by angular momentumen
dc.typeArtículoes
dcterms.abstractWe examine the entanglement induced by an angular momentum coupling between two harmonic systems. The Hamiltonian corresponds to that of a charged particle in a uniform magnetic field in an anisotropic quadratic potential, or equivalently, to that of a particle in a rotating quadratic potential. We analyze both the vacuum and thermal entanglement, obtaining analytic expressions for the entanglement entropy and negativity through the gaussian state formalism. It is shown that vacuum entanglement diverges at the edges of the dynamically stable sectors, increasing with the angular momentum and saturating for strong fields, whereas at finite temperature, entanglement is non-zero just within a finite field or frequency window and no longer diverges. Moreover, the limit temperature for entanglement is finite in the whole stable domain. The thermal behavior of the gaussian quantum discord and its difference with the negativity is also discussed.en
dcterms.creator.authorRebón, L.es
dcterms.creator.authorRossignoli, Raúl Dantees
dcterms.extent10 p.es
dcterms.identifier.otherDOI: 10.1103/PhysRevA.84.052320es
dcterms.identifier.urlDocumento completoes
dcterms.isPartOf.issuevol. 84, nº 5es
dcterms.isPartOf.seriesPhysical Review Aes
dcterms.issued2011
dcterms.languageIngléses
dcterms.licenseAttribution 4.0 International (BY 4.0)es
dcterms.publisherAPS physicses
dcterms.subjectEntanglement and quantum nonlocalityen
dcterms.subjectBoson systemsen
dcterms.subject.materiaCiencias Físicases
Archivos
Paquete original
Mostrando1 - 1 de 1
Imagen en miniatura
Nombre:
Entanglement of two harmonic modes1112.1441.pdf-PDFA.pdf
Tamaño:
541.95 KB
Formato:
Adobe Portable Document Format
Descripción:
Documento completo