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Entropy 2017, 19(12), 639; https://doi.org/10.3390/e19120639

Magnetic Engine for the Single-Particle Landau Problem

1
Departamento de Física, Universidad Técnica Federico Santa María, Valparaíso 2340000, Chile
2
Departamento de Física, Facultad de Ciencias Físicas y Matemáticas, Universidad de Chile, Santiago 8320000, Chile
3
Instituto de Física, Pontificia Universidad Católica de Valparaíso, Valparaíso 2340000, Chile
4
Centro para el Desarrollo de la Nanociencia y la Nanotecnología, Santiago 8320000, Chile
*
Author to whom correspondence should be addressed.
Received: 30 September 2017 / Revised: 21 November 2017 / Accepted: 22 November 2017 / Published: 25 November 2017
(This article belongs to the Special Issue Thermodynamics and Statistical Mechanics of Small Systems)
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Abstract

We study the effect of the degeneracy factor in the energy levels of the well-known Landau problem for a magnetic engine. The scheme of the cycle is composed of two adiabatic processes and two isomagnetic processes, driven by a quasi-static modulation of external magnetic field intensity. We derive the analytical expression of the relation between the magnetic field and temperature along the adiabatic process and, in particular, reproduce the expression for the efficiency as a function of the compression ratio. View Full-Text
Keywords: quantum thermodynamics; degeneracy effects; magnetic quantum engine quantum thermodynamics; degeneracy effects; magnetic quantum engine
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Peña, F.J.; González, A.; Nunez, A.S.; Orellana, P.A.; Rojas, R.G.; Vargas, P. Magnetic Engine for the Single-Particle Landau Problem. Entropy 2017, 19, 639.

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