Magnetic Engine for the Single-Particle Landau Problem

被引：14

作者：

Pena, Francisco J. ^{[1
]}

Gonzalez, Alejandro ^{[1
]}

Nunez, Alvaro S. ^{[2
]}

Orellana, Pedro A. ^{[1
]}

Rojas, Rene G. ^{[3
]}

Vargas, Patricio ^{[1
,4
]}

机构：

[1] Univ Tecn Federico Santa Maria, Dept Fis, Valparaiso 2340000, Chile

[2] Univ Chile, Dept Fis, Fac Ciencias Fis & Matemat, Santiago 8320000, Chile

[3] Pontificia Univ Catolica Valparaiso, Inst Fis, Valparaiso 2340000, Chile

[4] Ctr Desarrollo Nanociencia & Nanotecnol, Santiago 8320000, Chile

来源：

ENTROPY | 2017年 / 19卷 / 12期

关键词：

quantum thermodynamics; degeneracy effects; magnetic quantum engine;

D O I：

10.3390/e19120639

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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.

引用

页数：15

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