A Numerical Study of Quantum Decoherence

被引：7

作者：

Adami, Riccardo ^{[2
]}

Negulescu, Claudia ^{[1
]}

机构：

[1] Univ Provence, CMI LATP, UMR 6632, F-13453 Marseille 13, France

[2] Univ Milano Bicocca, Dipartimento Matemat & Applicaz, I-20125 Milan, Italy

来源：

COMMUNICATIONS IN COMPUTATIONAL PHYSICS | 2012年 / 12卷 / 01期

关键词：

Quantum mechanics; Schrodinger equation; heavy-light particle scattering; interference; decoherence; numerical discretization; numerical analysis; splitting scheme; SCATTERING; SYSTEM;

D O I：

10.4208/cicp.011010.010611a

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The present paper provides a numerical investigation of the decoherence effect induced on a quantum heavy particle by the scattering with a light one. The time dependent two-particle Schrodinger equation is solved by means of a time-splitting method. The damping undergone by the non-diagonal terms of the heavy particle density matrix is estimated numerically, as well as the error in the Joos-Zeh approximation formula.

引用

页码：85 / 108

页数：24

共 29 条

[1] On the asymptotic behaviour of a quantum two-body system in the small mass ratio limit [J].

Adami, R ;

Figari, R ;

Finco, D ;

Teta, A .

JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL, 2004, 37 (30) :7567-7580

[2]

Adami R., APPL DECOHEREN UNPUB

[3] Rate of decoherence for an electron weakly coupled to a phonon gas [J].

Adami, Riccardo ;

Erdos, Laszlo .

JOURNAL OF STATISTICAL PHYSICS, 2008, 132 (02) :301-328

[4] On the asymptotic dynamics of a quantum system composed by heavy and light particles [J].

Adami, Riccardo ;

Figari, Rodolfo ;

Finco, Domenico ;

Teta, Alessandro .

COMMUNICATIONS IN MATHEMATICAL PHYSICS, 2006, 268 (03) :819-852

[5] Simulation of Electron Decoherence Induced by Carrier-Carrier Scattering [J].

Bertoni, Andrea .

JOURNAL OF COMPUTATIONAL ELECTRONICS, 2003, 2 (2-4) :291-295

[6]

Blanchard Ph., 1996, DECOHERENCE APPEARAN

[7]

Breuer H.P., 2007, THEORY OPEN QUANTUM, DOI DOI 10.1093/ACPROF:OSO/9780199213900.001.0001

[8] Decoherence induced by scattering: a three-dimensional model [J].

Cacciapuoti, C ;

Carlone, R ;

Figari, R .

JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL, 2005, 38 (22) :4933-4946

[9] INFLUENCE OF DAMPING ON QUANTUM INTERFERENCE - AN EXACTLY SOLUBLE MODEL [J].

CALDEIRA, AO ;

LEGGETT, AJ .

PHYSICAL REVIEW A, 1985, 31 (02) :1059-1066

[10] The reduced effect of a single scattering with a low-mass particle via a point interaction [J].

Clark, Jeremy .

JOURNAL OF FUNCTIONAL ANALYSIS, 2009, 256 (09) :2894-2916

← 1 2 3 →