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Thermodynamics of Minimal Coupling Quantum Heat Engines [PDF]
Quantum, 2020 The minimal-coupling quantum heat engine is a thermal machine consisting of an explicit energy storage system, heat baths, and a working body, which alternatively couples to subsystems through discrete strokes --- energy-conserving two-body quantum ...
Marcin Łobejko +2 more
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Concepts of work in autonomous quantum heat engines [PDF]
Quantum, 2019 One of the fundamental questions in quantum thermodynamics concerns the decomposition of energetic changes into heat and work. Contrary to classical engines, the entropy change of the piston cannot be neglected in the quantum domain.
Wolfgang Niedenzu +2 more
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Superradiant Quantum Heat Engine. [PDF]
Sci Rep, 2015 AbstractQuantum physics revolutionized classical disciplines of mechanics, statistical physics and electrodynamics. One branch of scientific knowledge however seems untouched: thermodynamics. Major motivation behind thermodynamics is to develop efficient heat engines.
Hardal AÜ, Müstecaplıoğlu ÖE.
europepmc +7 more sources
Quantum Heat Engines with Singular Interactions [PDF]
Symmetry, 2021 By harnessing quantum phenomena, quantum devices have the potential to outperform their classical counterparts. Here, we examine using wave function symmetry as a resource to enhance the performance of a quantum Otto engine. Previous work has shown that a bosonic working medium can yield better performance than a fermionic medium.
Nathan M. Myers +2 more
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Quantum coherence in a quantum heat engine [PDF]
Journal of Physics A: Mathematical and Theoretical, 2020 Abstract We identify that quantum coherence is a valuable resource in the quantum heat engine, which is designed in a quantum thermodynamic cycle assisted by a quantum Maxwell’s demon. This demon is in a superposed state. The quantum work and heat are redefined as the sum of coherent and incoherent parts in the energy representation ...
Yun-Hao Shi +6 more
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Isolated Quantum Heat Engine [PDF]
Physical Review Letters, 2012 4 pages, 4 ...
Fialko, O., Hallwood, D.
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Quantum Optomechanical Heat Engine [PDF]
Physical Review Letters, 2014 We investigate theoretically a quantum optomechanical realization of a heat engine. In a generic optomechanical arrangement the optomechanical coupling between the cavity field and the oscillating end-mirror results in polariton normal mode excitations whose character depends on the pump detuning and the coupling strength.
Zhang, Keye +2 more
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Holographic heat engines as quantum heat engines [PDF]
Classical and Quantum Gravity, 2020 Abstract Certain solutions of Einstein’s equations in anti-de Sitter spacetime can be engineered, using extended gravitational thermodynamics, to yield ‘holographic heat engines’, devices that turn heat into useful mechanical work.
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Quantum heat engine with multilevel quantum systems [PDF]
Physical Review E, 2005 By reformulating the first law of thermodynamics in the fashion of quantum-mechanical operators on the parameter manifold, we propose a universal class of quantum heat engines (QHE) using the multi-level quantum system as the working substance. We obtain a general expression of work for the thermodynamic cycle with two thermodynamic adiabatic processes,
Quan, H. T., Zhang, P., Sun, C. P.
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Mechanical equivalent of quantum heat engines [PDF]
Physical Review E, 2008 Quantum heat engines employ as working agents multilevel systems instead of classical gases. We show that under some conditions quantum heat engines are equivalent to a series of reservoirs at different altitudes containing balls of various weights. A cycle consists of picking up at random a ball from one reservoir and carrying it to the next, thereby ...
Arnaud, Jacques +2 more
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