Quantum engines and the range of the second law of thermodynamics in the noncommutative phase-space
Departamento de Física, Universidade Federal de São Carlos, PO Box 676, 13565-905, São Carlos, SP, Brazil
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Accepted: 5 May 2017
Published online: 13 June 2017
Two testable schemes for quantum heat engines are investigated under the quantization framework of noncommutative (NC) quantum mechanics (QM). By identifying the phenomenological connection between the phase-space NC driving parameters and an effective external magnetic field, the NC effects on the efficiency coefficient, , of quantum engines can be quantified for two different cycles: an isomagnetic one and an isoenergetic one. In addition, paying a special attention to the quantum Carnot cycle, one notices that the inclusion of NC effects does not affect the maximal (Carnot) efficiency, , ratifying the robustness of the second law of thermodynamics.
© Società Italiana di Fisica and Springer-Verlag GmbH Germany, 2017