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arXiv 0710.0569hep-lat
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有限温度下扭转质量QCD

Twisted mass QCD at finite temperature

E. -M. Ilgenfritz, M. Müller-Preußker, M. Petschlies, K. Jansen, M. P. Lombardo, O. Philipsen, L. Zeidlewicz, A. Sternbeck

摘要:

我们讨论了利用具有扭曲质量的Wilson费米子来模拟QCD热力学。作为一个先决条件,为未来的有限温度转变的分析,利用自动O(a)的改进,我们调查的相结构跨越的跳跃参数kappa,耦合β,和扭曲的质量参数μ的空间。本文给出了16^3 × 8格点上N_f=2简并夸克的结果,研究了在强耦合和μ为零时Aoki相存在的可能性,以及在中等规范耦合和μ不为零时热相变的可能性.

英文摘要:

We discuss the use of Wilson fermions with twisted mass for simulations of QCD thermodynamics. As a prerequisite for a future analysis of the finite-temperature transition making use of automatic O(a) improvement, we investigate the phase structure in the space spanned by the hopping parameter kappa, the coupling beta, and the twisted mass parameter mu. We present results for N_f=2 degenerate quarks on a 16^3x8 lattice, for which we investigate the possibility of an Aoki phase existing at strong coupling and vanishing mu, as well as of a thermal phase transition at moderate gauge couplings and non-vanishing mu.

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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