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arXiv 1412.7855hep-lat
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有限化学势单味格点Gross-Neveu模型的Grassmann张量重整化群

Grassmann tensor renormalization group for one-flavor lattice Gross-Neveu model with finite chemical potential

Shinji Takeda, Yusuke Yoshimura

摘要:

本文将Grassmann张量重整化群(GTRG)应用于具有化学势的单味格点Gross-Neveu模型。我们计算了费米子数密度及其磁化率,证实了GTRG对有限密度系统的有效性。我们介绍了一种类似于蒙特卡罗方法的加权方法,并对一些参数进行了测试。

英文摘要:

We apply the Grassmann tensor renormalization group (GTRG) to the one-flavor lattice Gross-Neveu model in the presence of chemical potential. We compute the fermion number density and its susceptibility and confirm the validity of GTRG for the finite density system. We introduce a method analogous to the reweighting method for Monte Carlo method and test it for some parameters.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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