Optomechanical oscillator controlled by variation in its heat bath temperature

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F17%3A73581233" target="_blank" >RIV/61989592:15310/17:73581233 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11320/17:10368902
Result on the web
<a href="https://journals.aps.org/pra/pdf/10.1103/PhysRevA.95.042105" target="_blank" >https://journals.aps.org/pra/pdf/10.1103/PhysRevA.95.042105</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevA.95.042105" target="_blank" >10.1103/PhysRevA.95.042105</a>

Result language
angličtina
Original language name
Optomechanical oscillator controlled by variation in its heat bath temperature
Original language description
We propose a generation of a low-noise state of optomechanical oscillator by a temperature-dependent force. We analyze the situation in which a quantum optomechanical oscillator (denoted as themembrane) is driven by an external force (produced by the piston). Both systems are embedded in a common heat bath at certain temperature T. The driving force the piston exerts on the membrane is bath temperature dependent. Initially, for T = T-0, the piston is linearly coupled to the membrane. The bath temperature is then reversibly changed to T not equal T-0. The change of temperature shifts the membrane, but simultaneously also increases its fluctuations. The resulting equilibrium state of the membrane is analyzed from the point of view of mechanical, as well as of thermodynamic, characteristics. We compare these characteristics of membrane and derive their intimate connection. Next, we cool down the thermal noise of the membrane, bringing it out of equilibrium, still being in the contact with heat bath. This cooling retains the effective canonical Gibbs state with the effective temperature T*. In such case we study the analogs of the equilibrium quantities for low-noise mechanical states of the membrane.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10306 - Optics (including laser optics and quantum optics)

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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