Decoherence in quantum spin systems

被引:0
作者
De Raedt, H [1 ]
Dobrovitski, VV [1 ]
机构
[1] Univ Groningen, Ctr Mat Sci, NL-9747 AG Groningen, Netherlands
来源
COMPUTER SIMULATION STUDIES IN CONDENSED-MATTER PHYSCIS XVI | 2003年 / 95卷
关键词
D O I
暂无
中图分类号
TP39 [计算机的应用];
学科分类号
081203 ; 0835 ;
摘要
Computer simulations of decoherence in quantum spin systems require the solution of the time-dependent Schrodinger equation for interacting quantum spin systems over extended periods of time. We use exact diagonalization, the Chebyshev polynomial technique, four Suzuki-formula algorithms, and the short-iterative-Lanczos method to solve a simple model for decoherence of a quantum spin system by an environment consisting of quantum spins, and compare advantages and limitations of different algorithms.
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页码:73 / 78
页数:6
相关论文
共 23 条
[1]  
[Anonymous], 2009, Quantum computation and quantum information, DOI DOI 10.1119/1.1463744
[2]  
Blanchard P., 2000, Decoherence: Theoretical, Experimental, and Conceptual Problems
[3]   Quantum Computer Emulator [J].
De Raedt, H ;
Hams, AH ;
Michielsen, K ;
De Raedt, K .
COMPUTER PHYSICS COMMUNICATIONS, 2000, 132 (1-2) :1-20
[4]   PRODUCT FORMULA ALGORITHMS FOR SOLVING THE TIME-DEPENDENT SCHRODINGER-EQUATION [J].
DERAEDT, H .
COMPUTER PHYSICS REPORTS, 1987, 7 (01) :1-72
[5]   SOLUTION OF THE TIME-DEPENDENT SCHRODINGER-EQUATION FOR 2-DIMENSIONAL SPIN-1/2 HEISENBERG SYSTEMS [J].
DEVRIES, P ;
DERAEDT, H .
PHYSICAL REVIEW B, 1993, 47 (13) :7929-7937
[6]  
DOBROVITSKI VV, IN PRESS PHYS REV E
[7]  
DOBROVITSKI VV, ARXIVQUANTPH0112053
[8]  
Gunther L., 1995, NATO ASI E
[9]   Calculating the linear response functions of noninteracting electrons with a time-dependent Schrodinger equation [J].
Iitaka, T ;
Nomura, S ;
Hirayama, H ;
Zhao, XW ;
Aoyagi, Y ;
Sugano, T .
PHYSICAL REVIEW E, 1997, 56 (01) :1222-1229
[10]   LANCZOS METHOD FOR THE CALCULATION OF FINITE-TEMPERATURE QUANTITIES IN CORRELATED SYSTEMS [J].
JAKLIC, J ;
PRELOVSEK, P .
PHYSICAL REVIEW B, 1994, 49 (07) :5065-5068