Exotic properties and optimal control of quantum heat engine

Abstract

A quantum heat engine of a specific type is studied. This engine contains a single particle confined in the infinite square well potential with variable width and consists of three processes: the isoenergetic process (which has no classical analogs) as well as the isothermal and adiabatic processes. It is found that the engine possesses exotic properties in its performance. The efficiency takes the maximum value when the expansion ratio of the engine is appropriately set, and, in addition, the lower the temperature is, the higher the maximum efficiency becomes, highlighting aspects of the influence of quantum effects on thermodynamics. A comment is also made on the relevance of this engine to that of Carnot.

18 pages, 3 figures, 1 table. Published version

References in corpus (4)

• Quantum Thermodynamic Cycles and quantum heat engines
• The second law, Maxwell's daemon and work derivable from quantum heat engines
• Quantum Thermodynamic Cycles and Quantum Heat Engines (II)
• The Big World of Nanothermodynamics

Cited by in corpus (9)

• Quantum thermodynamic devices: from theoretical proposals to experimental reality
• Relativistic quantum heat engine from uncertainty relation standpoint
• Lindbladian operators, von Neumann entropy and energy conservation in time-dependent quantum open systems
• Maximum Power Output of Quantum Heat Engine with Energy Bath
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• Invariants of Fokker-Planck equations
• A photonic engine fueled by quantum-correlated atoms
• Growing fluctuation of quantum weak invariant and dissipation
• Geodesic learning