Quantum to Classical Transition by a Classically Small Interaction

被引：4

作者：

赵文垒 ^{[1
]}

揭泉林 ^{[1
]}

周波 ^{[1
,2
]}

机构：

[1] Department of physics,Wuhan University

[2] School of Mathematics and Physics,Chongqing University of Technology

来源：

Communications in Theoretical Physics | 2010年 / 54卷 / 08期

基金：

美国国家科学基金会;

关键词：

decoherence; entanglement; quantum chaos; kicked rotor;

D O I：

暂无

中图分类号：

O413 [量子论];

学科分类号：

070201 ;

摘要：

We investigate the quantum-classical transition of a kicked rotor (KR) under perturbation by a second one.The influence of such a chaotic KR makes decoherence of the first one,resulting in the emergence of classical diffusionfrom its quantum dynamics.Such quantum-classical transition persists by decreasing the effective Planck’s constant h,and at the same time,decreasing the mass of the second KR and the interaction strength proportionally.In the limit ofh→0,due to vanishing small mass and interaction,the second KR has almost no effect on the classical dynamics of thefirst one.We demonstrate this via two different coupling potentials.

引用

页码：247 / 252

页数：6

共 29 条

[1] W.H.Zurek. Phys.Rev.D . 1982
[2] D.Rossini,G.Benenti,G.Casati. Physical Review E Statistical Nonlinear and Soft Matter Physics . 2006
[3] Stochastic behaior of a quantum pendulum under a periodic perturbation. Casati G. Chirikov B. V. Izraelev F. M. et al. Lecture Notes in Physics . 1979
[4] W. H. Zurek. Physical Review D Particles Fields Gravitation and Cosmology . 1981
[5] J.N.Bandyopadhyay. Europhysics Letters . 2009
[6] W. H. Zurek. Reviews of Modern Physics . 2003
[7] F.M. Izrailev. Physics Reports . 1990
[8] Decoherence induced by a chaotic environment: a quantum walker with a complex coin. L. Ermann,J.P. Paz,M. Saraceno. Physical Review A Atomic Molecular and Optical Physics . 2006
[9] D.Akoury,et al. Science . 2007
[10] C.E.Creffield,S.Fishman,T.S.Monteiro. Physical Review E Statistical Nonlinear and Soft Matter Physics . 2006

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