Work extraction from heat-powered quantized optomechanical setups

D. Gelbwaser-Klimovsky; G. Kurizki

doi:https://doi.org/10.1038/srep07809

Work extraction from heat-powered quantized optomechanical setups

D. Gelbwaser-Klimovsky, G. Kurizki

Department of Chemical and Biological Physics

Weizmann Institute of Science

Research output: Contribution to journal › Article › peer-review

Abstract

We analyze work extraction from an autonomous (self-contained) heat-powered optomechanical setup. The initial state of the quantized mechanical oscillator plays a key role. As the initial mean amplitude of the oscillator decreases, the resulting efficiency increases. In contrast to laser-powered self-induced oscillations, work extraction from a broadband heat bath does not require coherence or phase-locking: an initial phase-averaged coherent state of the oscillator still yields work, as opposed to an initial Fock-state.

Original language	English
Article number	7809
Journal	Scientific Reports
Volume	5
DOIs	https://doi.org/10.1038/srep07809
State	Published - 2015

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title = "Work extraction from heat-powered quantized optomechanical setups",

abstract = "We analyze work extraction from an autonomous (self-contained) heat-powered optomechanical setup. The initial state of the quantized mechanical oscillator plays a key role. As the initial mean amplitude of the oscillator decreases, the resulting efficiency increases. In contrast to laser-powered self-induced oscillations, work extraction from a broadband heat bath does not require coherence or phase-locking: an initial phase-averaged coherent state of the oscillator still yields work, as opposed to an initial Fock-state.",

author = "D. Gelbwaser-Klimovsky and G. Kurizki",

note = "ISF; BSF; AERI; CONACYTThe support of ISF, BSF, AERI and CONACYT is acknowledged.",

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doi = "https://doi.org/10.1038/srep07809",

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AB - We analyze work extraction from an autonomous (self-contained) heat-powered optomechanical setup. The initial state of the quantized mechanical oscillator plays a key role. As the initial mean amplitude of the oscillator decreases, the resulting efficiency increases. In contrast to laser-powered self-induced oscillations, work extraction from a broadband heat bath does not require coherence or phase-locking: an initial phase-averaged coherent state of the oscillator still yields work, as opposed to an initial Fock-state.

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Work extraction from heat-powered quantized optomechanical setups

Abstract

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