Simulating `Complex' Problems with Quantum Monte Carlo
凝聚态物理
2009-10-22 v1
摘要
We present a new quantum Monte Carlo algorithm suitable for generically complex problems, such as systems coupled to external magnetic fields or anyons in two spatial dimensions. We find that the choice of gauge plays a nontrivial role, and can be used to reduce statistical noise in the simulation. Furthermore, it is found that noise can be greatly reduced by approximate cancellations between the phases of the (gauge dependent) statistical flux and the external magnetic flux.
引用
@article{arxiv.cond-mat/9311039,
title = {Simulating `Complex' Problems with Quantum Monte Carlo},
author = {Lizeng Zhang and Geoff Canright and Ted Barnes},
journal= {arXiv preprint arXiv:cond-mat/9311039},
year = {2009}
}
备注
Revtex, 11 pages. 3 postscript files for figures attached