Decoherence in quantum spin systems
量子物理
2007-05-23 v3
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, 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.
引用
@article{arxiv.quant-ph/0301121,
title = {Decoherence in quantum spin systems},
author = {H. De Raedt and V. V. Dobrovitski},
journal= {arXiv preprint arXiv:quant-ph/0301121},
year = {2007}
}
备注
5 pages (llncs.sty, Springer style file), 1 EPS figure. The paper will appear in "Computer Simulation Studies in Condensed-Matter Physics XVI", eds. D.P. Landau et al., Springer Proceedings in Physics (Springer, Berlin, 2004)