格点伪迹与耦合常数的跑动
高能物理 - 格点
2009-10-31 v2
摘要
我们研究了二维O(3)非线性 模型中Lüscher-Weisz-Wolff (LWW) 耦合常数的跑动。为了研究连续极限，我们将格点间距从LWW使用的 细化到 。我们发现格点伪迹比LWW估计的要大得多，并且耦合常数的跑动很可能比微扰论预测的要慢。精确确定连续极限下的跑动需要受控的外推假设，我们认为目前尚不具备这样的假设。
关键词
引用
@article{arxiv.hep-lat/0009005,
title = {Lattice artefacts and the running of the coupling constant},
author = {Adrian Patrascioiu and Erhard Seiler},
journal= {arXiv preprint arXiv:hep-lat/0009005},
year = {2009}
}
备注
4 pages, 4 figures. To address the criticism that we are studying a different quantitiy than Luscher, Weisz and Wolff originally did, we introduced a new equation (2), a new paragraph discussing this issue and a new figure comparing the results obtained with our prescription to that obtained with the original one of Luscher, Weisz and Wolff