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arXiv 2112.06002hep-lat
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有限密度下具有静态行列式的格阿贝尔模型的对偶

Duals of lattice Abelian models with static determinant at finite density

O. Borisenko, V. Chelnokov, S. Voloshyn, P. Yefanov

摘要:

在有限温度和非零化学势下,构造了具有静态费米子行列式的阿贝尔U(1)和Z(N)LGT的对偶公式。对偶形式适用于广泛的格点规范作用量,适用于任意数量的费米子味和任意维数。对偶公式的显著特点是对偶玻尔兹曼权是严格正的。这允许通过蒙特卡罗模拟在有限密度下获得可靠的结果。作为对偶表示的副产品,我们概述了(1 + 1)维理论的配分函数的精确解,并揭示了振荡相关相位的存在。

英文摘要:

Dual formulations of Abelian U(1) and Z(N) LGT with a static fermion determinant are constructed at finite temperatures and non-zero chemical potential. The dual form is valid for a broad class of lattice gauge actions, for arbitrary number of fermion flavors and in any dimension. The distinguished feature of the dual formulation is that the dual Boltzmann weight is strictly positive. This allows to gain reliable results at finite density via the Monte Carlo simulations. As a byproduct of the dual representation we outline an exact solution for the partition function of the (1 + 1)-dimensional theory and reveal an existence of a phase with oscillating correlations.

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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