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hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
dc.contributor.authorAVRILLER, Rémi
hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
dc.contributor.authorMURR, B
hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
dc.contributor.authorPISTOLESI, F.
dc.date.created2018-01-10
dc.date.issued2018-04-16
dc.identifier.issn1098-0121
dc.description.abstractEnRemarkable features have been predicted for the mechanical fluctuations at the bistability transition of a classical oscillator coupled capacitively to a quantum dot [Phys. Rev. Lett. 115, 206802 (2015)]. These results have been obtained in the regime ω0 ≪ kBT ≪ Γ, where ω0, T , and Γ are the mechanical resonating frequency, the temperature, and the tunneling rate, respectively. A similar behavior could be expected in the quantum regime of Γ ≪ kBT ≪ ω0. We thus calculate the energy and displacement fluctuation spectra and study their behavior as a function of the electro-mechanical coupling constant when the system enters the Frank-Condon regime. We find that, in analogy with the classical case, the energy fluctuation spectrum and the displacement spectrum widths show a maximum for values of the coupling constant at which a mechanical bistability establishes.
dc.language.isoen
dc.publisherAmerican Physical Society
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/
dc.title.enBistability and Displacement Fluctuations in a Quantum Nano-mechanical Oscillator
dc.typeArticle de revue
dc.identifier.doi10.1103/PhysRevB.97.155414
dc.subject.halPhysique [physics]/Matière Condensée [cond-mat]/Systèmes mésoscopiques et effet Hall quantique [cond-mat.mes-hall]
dc.identifier.arxiv1801.03747
bordeaux.journalPhysical Review B: Condensed Matter and Materials Physics (1998-2015)
bordeaux.page155414 (1-13)
bordeaux.volume97
bordeaux.issue15
bordeaux.peerReviewedoui
hal.identifierhal-01680222
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01680222v1
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