Bistability and Displacement Fluctuations in a Quantum Nano-mechanical Oscillator
| hal.structure.identifier | Laboratoire Ondes et Matière d'Aquitaine [LOMA] | |
| dc.contributor.author | AVRILLER, Rémi | |
| hal.structure.identifier | Laboratoire Ondes et Matière d'Aquitaine [LOMA] | |
| dc.contributor.author | MURR, B | |
| hal.structure.identifier | Laboratoire Ondes et Matière d'Aquitaine [LOMA] | |
| dc.contributor.author | PISTOLESI, F. | |
| dc.date.created | 2018-01-10 | |
| dc.date.issued | 2018-04-16 | |
| dc.identifier.issn | 1098-0121 | |
| dc.description.abstractEn | Remarkable 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.iso | en | |
| dc.publisher | American Physical Society | |
| dc.rights.uri | http://creativecommons.org/licenses/by-nc-sa/ | |
| dc.title.en | Bistability and Displacement Fluctuations in a Quantum Nano-mechanical Oscillator | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1103/PhysRevB.97.155414 | |
| dc.subject.hal | Physique [physics]/Matière Condensée [cond-mat]/Systèmes mésoscopiques et effet Hall quantique [cond-mat.mes-hall] | |
| dc.identifier.arxiv | 1801.03747 | |
| bordeaux.journal | Physical Review B: Condensed Matter and Materials Physics (1998-2015) | |
| bordeaux.page | 155414 (1-13) | |
| bordeaux.volume | 97 | |
| bordeaux.issue | 15 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-01680222 | |
| hal.version | 1 | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-01680222v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Physical%20Review%20B:%20Condensed%20Matter%20and%20Materials%20Physics%20(1998-2015)&rft.date=2018-04-16&rft.volume=97&rft.issue=15&rft.spage=155414%20(1-13)&rft.epage=155414%20(1-13)&rft.eissn=1098-0121&rft.issn=1098-0121&rft.au=AVRILLER,%20R%C3%A9mi&MURR,%20B&PISTOLESI,%20F.&rft.genre=article |
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