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arXiv 0901.4673hep-phhep-lat
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PNJL模型中QCD热力学的蒙特卡罗模拟

Monte-Carlo simulations of QCD Thermodynamics in the PNJL model

M. Cristoforetti, T. Hell, W. Weise

摘要:

本文将Monte-Carlo方法应用于双味Polyakov圈扩展Nambu和Jona-Lasinio(PNJL)模型。通过这种方式,我们可以超越平均场计算引入场的波动。我们研究了涨落对模型热力学的影响。我们计算了热力学巨正则配分函数相对于化学势的二阶导数,并与晶格数据进行了比较。

英文摘要:

We apply a Monte-Carlo method to the two flavor Polyakov loop extended Nambu and Jona-Lasinio (PNJL) model. In such a way we can go beyond mean field calculations introducing fluctuations of the fields. We study the impact of fluctuations on the thermodynamics of the model. We calculate the second derivatives of the thermodynamic grand canonical partition function with respect to the chemical potential and present a comparison with lattice data also for flavor non-diagonal susceptibilities.

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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