Effective potential approach to quantum dissipation in condensed matter systems

被引：0

作者：

Cuccoli, A ^{[1
]}

Fubini, A ^{[1
]}

Tognetti, V ^{[1
]}

Vaia, R ^{[1
]}

机构：

[1] Univ Florence, Dipartimento Fis, I-50125 Florence, Italy

来源：

PROCEEDINGS OF THE WORKSHOP ON NONLINEARITY, INTEGRABILITY AND ALL THAT: TWENTY YEARS AFTER NEEDS '79 | 2000年

关键词：

D O I：

暂无

中图分类号：

O29 [应用数学];

学科分类号：

070104 ;

摘要：

The effects of dissipation on the thermodynamic properties of nonlinear quantum systems are approached by the path-integral method in order to construct approximate classical-like formulas for evaluating thermal averages of thermodynamic quantities. Explicit calculations are presented for one-particle and many-body systems. The effects of the dissipation mechanism on the phase diagram of two-dimensional Josephson arrays is discussed.

引用

收藏

页码：437 / 444

页数：8

相关论文

共 13 条

[1] VARIATIONAL PATH-INTEGRAL APPROACH TO A NONLINEAR OPEN SYSTEM [J].

BAO, JD ;

ZHUO, YZ ;

WU, XZ .

PHYSICAL REVIEW E, 1995, 52 (05) :5656-5659

[2]

Berezin F. A., 1980, SOV PHYS USP, V23, P763

[3] QUANTUM TUNNELLING IN A DISSIPATIVE SYSTEM [J].

CALDEIRA, AO ;

LEGGETT, AJ .

ANNALS OF PHYSICS, 1983, 149 (02) :374-456

[4]

CERDEIRA HA, 1996, PHYSICA B, V222, P253

[5] Thermodynamics of dissipative quantum system by effective potential [J].

Cuccoli, A ;

Rossi, A ;

Tognetti, V ;

Vaia, R .

PHYSICAL REVIEW E, 1997, 55 (05) :R4849-R4852

[6] Thermodynamics of quantum dissipative many-body systems [J].

Cuccoli, A ;

Fubini, A ;

Tognetti, V ;

Vaia, R .

PHYSICAL REVIEW E, 1999, 60 (01) :231-241

[7] QUANTUM THERMODYNAMICS IN CLASSICAL PHASE-SPACE [J].

CUCCOLI, A ;

TOGNETTI, V ;

VERRUCCHI, P ;

VAIA, R .

PHYSICAL REVIEW A, 1992, 45 (12) :8418-8429

[8] THE EFFECTIVE POTENTIAL AND EFFECTIVE HAMILTONIAN IN QUANTUM-STATISTICAL MECHANICS [J].

CUCCOLI, A ;

GIACHETTI, R ;

TOGNETTI, V ;

VAIA, R ;

VERRUCCHI, P .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1995, 7 (41) :7891-7938

[9]

FEYNMAN RP, 1965, QUANTUM MECH PATH IN

[10] VARIATIONAL APPROACH TO QUANTUM STATISTICAL-MECHANICS OF NONLINEAR-SYSTEMS WITH APPLICATION TO SINE-GORDON CHAINS [J].

GIACHETTI, R ;

TOGNETTI, V .

PHYSICAL REVIEW LETTERS, 1985, 55 (09) :912-915