Results 31 to 40 of about 3,155,393 (333)
Nature, 1892 IN trying Mr. Smith's experiment on the rotation of nickel (NATURE, January 28, p. 294), I find my disk has a more complex action.
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Single Gyrotropic Particle as a Heat Engine [PDF]
, 2020 We demonstrate that the system composed of a gyrotropic particle out of thermal equilibrium with vacuum can be regarded as a heat engine. Such a particle, initially at rest, will experience a fluctuation-induced torque and start to rotate, producing ...
Yu Guo, S. Fan
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Nature, 1892 AT the last soiree of the Royal Society, a beautiful experiment was shown by Mr. Shelford Bidwell, illustrative of the fact that nickel ceases to be magnetic at a certain definite temperature. A piece of nickel was arranged as the bob of a pendulum. As long as the nickel was below a certain temperature it was held on one side by a magnet, but when it ...
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Correlations of heat and charge currents in quantum-dot thermoelectric engines [PDF]
, 2013 We analyze the noise properties of both electric charge and heat currents as well as their correlations in a quantum-dot based thermoelectric engine. The engine is a three-terminal conductor with crossed heat and charge flows where heat fluctuations can ...
Büttiker, Markus +3 more
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Experimental Characterization of a Spin Quantum Heat Engine. [PDF]
Physical Review Letters, 2018 Developments in the thermodynamics of small quantum systems envisage nonclassical thermal machines. In this scenario, energy fluctuations play a relevant role in the description of irreversibility.
J. P. S. Peterson +6 more
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Holographic heat engines [PDF]
Classical and Quantum Gravity, 2014 It is shown that in theories of gravity where the cosmological constant is considered a thermodynamic variable, it is natural to use black holes as heat engines. Two examples are presented in detail using AdS charged black holes as the working substance.
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Powerful energy harvester based on resonant-tunneling quantum wells [PDF]
, 2013 We analyze a heat engine based on a hot cavity connected via quantum wells to electronic reservoirs. We discuss the output power as well as the efficiency both in the linear and nonlinear regime.
Büttiker, Markus +3 more
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Active Brownian heat engines [PDF]
Physical Review Research, 2020 26 pages, 12 ...
Stefano Steffenoni +6 more
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Quantum limit to nonequilibrium heat-engine performance imposed by strong system-reservoir coupling.
Physical Review E, 2020 We show that finite system-reservoir coupling imposes a distinct quantum limit on the performance of a nonequilibrium quantum heat engine. Even in the absence of quantum friction along the isentropic strokes, finite system-reservoir coupling induces ...
David Newman, F. Mintert, A. Nazir
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Spin Heat Engine Coupled to a Harmonic-Oscillator Flywheel. [PDF]
Physical Review Letters, 2018 We realize a heat engine using a single-electron spin as a working medium. The spin pertains to the valence electron of a trapped ^{40}Ca^{+} ion, and heat reservoirs are emulated by controlling the spin polarization via optical pumping.
D. Lindenfels +6 more
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