论文标题

用动力夸克旋转QCD的热相变

Thermal phase transitions in rotating QCD with dynamical quarks

论文作者

Braguta, V. V., Kotov, A. Yu., Roenko, A. A., Sychev, D. A.

论文摘要

相对论旋转会导致QCD临界温度的变化。各种现象学和有效模型预测旋转QCD中临界温度的降低。然而,晶格模拟表明,由于旋转而导致的glu动力学中的临界温度升高。我们将晶格研究扩展到具有动态费用的理论。我们提出了第一个用$ n_f = 2 $动态三叶草改良的威尔逊夸克(Wilson Quarks)旋转QCD的晶​​格结果。我们还分别研究了旋转对gluonic和费米子自由度的影响。结果表明,振动和费米子的单独旋转对临界温度有相反的影响。总体上,QCD中伪临界温度随角速度的增加。还讨论了结果对斜向质量的依赖性。

Relativistic rotation causes a change of QCD critical temperatures. Various phenomenological and effective models predict a decrease of the critical temperatures in rotating QCD. Nevertheless, lattice simulations showed that the critical temperature in gluodynamics increases due to rotation. We extend the lattice study to the theory with dynamical fermions. We present the first lattice results for rotating QCD with $N_f=2$ dynamical clover-improved Wilson quarks. We also study separately the effect of rotation on gluonic and fermionic degrees of freedom. It is shown that separate rotations of gluons and fermions have opposite effects on the critical temperatures. In aggregate, the pseudo-critical temperatures in QCD increase with angular velocity. Dependence of the results on the pion mass is also discussed.

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