利用平均谱方法从量子蒙特卡罗模拟中提取动力学信息
强关联电子
2009-11-13 v2 统计力学
摘要
我们将平均谱方法（Average Spectrum Method）应用于从虚时量子蒙特卡罗模拟中获取激发谱的问题。我们证明,只要量子蒙特卡罗（QMC）数据质量足够高,该方法能够非常好地重现主要的谱特征。它还能够给出在多粒子激发连续谱主导区域中的谱信息。
引用
@article{arxiv.0705.4173,
title = {Using the average spectrum method to extract dynamics from quantum Monte Carlo simulations},
author = {Olav F. Syljuasen},
journal= {arXiv preprint arXiv:0705.4173},
year = {2009}
}
评论
v2: Major revision. Title and abstract as well as the focus of the paper have been changed. Added a figure about the dynamics of 1D Heisenberg chain