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.

References in corpus (11)

• Sideband Cooling Micromechanical Motion to the Quantum Ground State
• Optomechanical entanglement between a movable mirror and a cavity field
• Resolved Sideband Cooling of a Micromechanical Oscillator
• Ground-state cooling of a micromechanical oscillator: generalized framework for cold damping and cavity-assisted cooling schemes
• State Transfer Between a Mechanical Oscillator and Microwave Fields in the Quantum Regime
• Observation of Radiation Pressure Shot Noise on a Macroscopic Object
• Performance bound for quantum absorption refrigerators
• Minimal universal quantum heat machine
• Quantum bath refrigeration towards absolute zero: unattainability principle challenged
• Extracting work from quantum systems
• Periodically driven quantum open systems: Tutorial