论文标题
阳米尔斯的签名从Gluon两点相关器换成过渡
Signatures of the Yang-Mills deconfinement transition from the gluon two-point correlator
论文作者
论文摘要
我们在有限温度下的最近提出的中心对称范数中评估了最近提出的中心对称兰道仪表中的纵向或（铬 - ）电阳米尔斯gluon传播器[1]。为了建模红色副本在红外线中的效果，我们使用curci-Ferrari模型，该模型又允许我们依靠扰动计算。在SU（2）情况下，在一环阶的情况下，所谓的纵向Gluon传播器为Z2中心对称性断裂提供了明确的签名，并具有奇异的行为，这是连续相变的特征。这与标准Landau仪表中的内容形成鲜明对比。我们还以真实顺序参数的形式确定了SU（3）情况下Z3中心对称破坏的各种特征。在其中，我们发现，gluon繁殖器尽管在狭窄阶段沿对角线颜色方向退化，但在解义阶段中变成了非分化。我们的结果开辟了新的方法，可以在连续方法和晶格中识别相关函数的过渡。
We evaluate the longitudinal or (chromo-)electric Yang-Mills gluon propagator in the recently proposed center-symmetric Landau gauge at finite temperature [1]. To model the effect of the Gribov copies in the infrared, we use the Curci-Ferrari model which, in turn, allows us to rely on perturbative calculations. At one-loop order in the SU(2) case, the so-obtained longitudinal gluon propagator provides a clear signature for Z2 center-symmetry breaking with a singular behavior, characteristic of a continuous phase transition. This is in sharp contrast with what is found within the standard Landau gauge. We also identify various signatures for Z3 center-symmetry breaking in the SU(3) case in the form of genuine order parameters. Among those, we find that the gluon propagator, although degenerate along the diagonal color directions in the confining phase, becomes non-degenerate in the deconfined phase. Our results open new ways of identifying the transition from correlation functions both within continuum approaches and on the lattice.
