Optimal performance of a quantum Otto refrigerator

被引：74

作者：

Abah, Obinna ^{[1
]}

Lutz, Eric ^{[1
]}

机构：

[1] Univ Erlangen Nurnberg, Dept Phys, D-91058 Erlangen, Germany

来源：

EPL | 2016年 / 113卷 / 06期

关键词：

OPEN SYSTEM; THERMODYNAMICS; EFFICIENCY; MODEL;

D O I：

10.1209/0295-5075/113/60002

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We consider a quantum Otto refrigerator cycle of a time-dependent harmonic oscillator. We investigate the coefficient of performance at maximum figure of merit for adiabatic and nonadiabatic frequency modulations. We obtain analytical expressions for the optimal performance both in the high-temperature (classical) regime and in the low-temperature (quantum) limit. We moreover analyze the breakdown of the cooling cycle for strongly nonadiabatic driving protocols and derive analytical estimates for the minimal driving time allowed for cooling. Copyright (C) EPLA, 2016

引用

页数：6

共 46 条

[1] Single-Ion Heat Engine at Maximum Power [J].

Abah, O. ;

Ronagel, J. ;

Jacob, G. ;

Deffner, S. ;

Schmidt-Kaler, F. ;

Singer, K. ;

Lutz, E. .

PHYSICAL REVIEW LETTERS, 2012, 109 (20)

[2] QUANTUM OPEN SYSTEM AS A MODEL OF THE HEAT ENGINE [J].

ALICKI, R .

JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL, 1979, 12 (05) :L103-L107

[3] Optimal refrigerator [J].

Allahverdyan, Armen E. ;

Hovhannisyan, Karen ;

Mahler, Guenter .

PHYSICAL REVIEW E, 2010, 81 (05)

[4] Work extremum principle: Structure and function of quantum heat engines [J].

Allahverdyan, Armen E. ;

Johal, Ramandeep S. ;

Mahler, Guenter .

PHYSICAL REVIEW E, 2008, 77 (04)

[5] THERMODYNAMICS IN FINITE-TIME [J].

ANDRESEN, B ;

SALAMON, P ;

BERRY, RS .

PHYSICS TODAY, 1984, 37 (09) :62-70

[6] Current Trends in Finite-Time Thermodynamics [J].

Andresen, Bjarne .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2011, 50 (12) :2690-2704

[7] Quantum thermodynamic processes: a control theory for machine cycles [J].

Birjukov, J. ;

Jahnke, T. ;

Mahler, G. .

EUROPEAN PHYSICAL JOURNAL B, 2008, 64 (01) :105-118

[8] Coupled quantized mechanical oscillators [J].

Brown, K. R. ;

Ospelkaus, C. ;

Colombe, Y. ;

Wilson, A. C. ;

Leibfried, D. ;

Wineland, D. J. .

NATURE, 2011, 471 (7337) :196-199

[9]

Callen H. B., 1985, THERMODYNAMICS INTRO

[10]

Chambadal P., 1949, THERMODYNAMIQUE TURB

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