The effect of environment induced pure decoherence on the generalized Jaynes-Cummings model

被引:3
作者
Gangopadhyay, G [1 ]
Lin, SH [1 ]
机构
[1] ACAD SINICA,INST ATOM & MOL SCI,TAIPEI 106,TAIWAN
来源
PRAMANA-JOURNAL OF PHYSICS | 1997年 / 49卷 / 04期
关键词
decoherence; Jaynes-Cummings model; generalized JCM;
D O I
10.1007/BF02847427
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We have studied the effect of environment induced pure decoherence on the generalized Jaynes-Cummings model (JCM). This generalized JCM is introduced to take into account both atom-field interaction and a class of spin-orbit interactions in the same framework. For generalized JCM with atom-field interaction, it is shown that along with the suppression of the oscillatory behaviour of the atomic and field variables, in the steady state, atomic energy is transferred to the field or vice versa through the dressed state coherence depending on the initial condition of the atom-field system and the model under consideration. It is also shown that initial Poissonian field acquires a sub-Poissonian character in the steady state and thus all the nonclassical properties are not erased by the decoherence in JCM. An interesting effect of this decoherence mechanism is that it affects the population and coherence properties of the individual subsystem in a different way. As an example of generalized JCM with spin-orbit interaction, the dynamics of spin of the hydrogen atom in a magnetic field is studied to show the effect of decoherence.
引用
收藏
页码:399 / 416
页数:18
相关论文
共 24 条
[1]   DYNAMICAL VIOLATION OF THE SUPERPOSITION PRINCIPLE FOR OPEN QUANTUM-SYSTEMS [J].
ALICKI, R .
PHYSICS LETTERS A, 1984, 103 (05) :247-249
[2]  
[Anonymous], 2017, MODERN QUANTUM MECH, DOI DOI 10.1017/9781108499996
[3]  
[Anonymous], ADV MULTIPHOTON PROC
[4]  
Bandyopadhyay A, 1996, J MOD OPTIC, V43, P487, DOI 10.1080/09500349608232759
[5]   DYNAMICS OF A 2-LEVEL ATOM IN A KERR-LIKE MEDIUM [J].
BUZEK, V ;
JEX, I .
OPTICS COMMUNICATIONS, 1990, 78 (5-6) :425-435
[6]   EXACT SOLUTION OF THE MILBURN EQUATION FOR THE JAYNES-CUMMINGS MODEL WITH AN INTENSITY-DEPENDENT INTERACTION [J].
CHEN, X ;
KUANG, LM .
PHYSICS LETTERS A, 1994, 191 (1-2) :18-24
[7]  
Cohen-Tannoudji C., 2004, ATOM PHOTON INTERACT
[8]   Sub-Poissonian processes in quantum optics [J].
Davidovich, L .
REVIEWS OF MODERN PHYSICS, 1996, 68 (01) :127-173
[9]   MICROMASER WITH KERR NONLINEARITY [J].
DEB, B ;
RAY, DS .
PHYSICAL REVIEW A, 1993, 48 (04) :3191-3195
[10]  
DU S, 1994, PHYS REV A, V17, P779