TRANSPORT OF A QUANTUM PARTICLE IN A DIMER UNDER THE INFLUENCE OF 2 CORRELATED DICHOTOMIC COLORED NOISES

被引:16
作者
FULINSKI, A
GORA, PF
机构
[1] Institute of Physics, Jagellonian University, PL-30-059 Kraków
来源
PHYSICAL REVIEW E | 1993年 / 48卷 / 05期
关键词
D O I
10.1103/PhysRevE.48.3510
中图分类号
O35 [流体力学]; O53 [等离子体物理学];
学科分类号
070204 ; 080103 ; 080704 ;
摘要
The transport of a quantum particle in a dimer is investigated for the case in which the influence of phonons from different branches is modeled by a dichotomic stochastic process with exponentially decaying correlations. For physical reasons, these processes might be correlated. An exact equation for the correlations between matrix elements of the density operator and both stochastic processes is constructed, and eigenvalues of the corresponding matrix are found numerically. Correlations between the noises reduce the range of incoherent transport. Various criteria for distinguishing between coherent and incoherent motion are also discussed.
引用
收藏
页码:3510 / 3517
页数:8
相关论文
共 30 条
[1]   EXACT SOLUTION OF A STOCHASTIC DIMER PROBLEM WITH SINGLE-SITE ENERGY MODULATION [J].
CHVOSTA, P .
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS, 1991, 178 (01) :168-194
[2]  
FELLER W, 1957, INTRO PROBABILITY TH, V2
[3]  
Feller W., 1957, INTRO PROBABILITY TH, V1
[4]   *ZWISCHENMOLEKULARE ENERGIEWANDERUNG UND FLUORESZENZ [J].
FORSTER, T .
ANNALEN DER PHYSIK, 1948, 2 (1-2) :55-75
[5]   RANDOM MOTION IN A ONE-DIMENSIONAL FLUCTUATING MEDIUM [J].
FRANKOWICZ, M ;
GAVEAU, B ;
MOREAU, M .
PHYSICS LETTERS A, 1991, 152 (5-6) :262-265
[6]   PERIODIC DICHOTOMOUS-NOISE-INDUCED TRANSITIONS AND STOCHASTIC COHERENCE [J].
FRASER, SJ ;
KAPRAL, R .
PHYSICAL REVIEW A, 1992, 45 (06) :3412-3431
[7]   ON THE EFFECT OF INTERFERENCE OF ADDITIVE AND MULTIPLICATIVE NOISES [J].
FULINSKI, A ;
TELEJKO, T .
PHYSICS LETTERS A, 1991, 152 (1-2) :11-14
[8]   TRANSITION RATES IN A STOCHASTIC MEDIUM [J].
GAVEAU, B ;
GUDOWSKANOWAK, E ;
KAPRAL, R ;
MOREAU, M .
PHYSICAL REVIEW A, 1992, 46 (02) :825-836
[9]   EXACTLY SOLVABLE MODEL FOR COHERENT AND INCOHERENT EXCITON MOTION [J].
HAKEN, H ;
STROBL, G .
ZEITSCHRIFT FUR PHYSIK, 1973, 262 (02) :135-148
[10]   COUPLED COHERENT AND INCOHERENT MOTION OF EXCITONS AND ITS INFLUENCE ON LINE SHAPE OF OPTICAL-ABSORPTION [J].
HAKEN, H ;
REINEKER, P .
ZEITSCHRIFT FUR PHYSIK, 1972, 249 (03) :253-&