论文标题
浓密的2色QCD中的声速
Bump of sound velocity in dense 2-color QCD
论文作者
论文摘要
我们在低温和高密度下获得了2色QCD的状态方程（EOS）和声速，并发现在超流相阶段，$ C_S^2/c^2> 1/3 $，其中$ 1/3 $是相对论极限处的值。近年来，对2色QCD进行了几项独立的蒙特卡洛研究。这些作品显示出明确的证据证明了辐射阶段和超流体阶段之间的相变。在我们的论文[1]中，我们研究了两个阶段的EOS和声音速度。我们的结果与手性扰动理论一致，在包括Bose-Einstein凝结相（包括Bose-Einstein凝结相）的低$ $ $ $ $ $ $ $方向上，并显示了高密度BCS相中声速的峰值。我们还提供了详细的模拟结果，并对本程序中的全息图发表了评论。
We obtain the equation of state (EoS) and the sound velocity for 2-color QCD at low temperature and high density and find that in the superfluid phase, $c_s^2/c^2 >1/3$, where $1/3$ is the value at the relativistic limit. Several independent Monte Carlo studies on 2-color QCD have been conducted intensively in recent years. These works have shown a clear evidence of phase transition between hadronic and superfluid phases. In our paper[1], we have investigated the EoS and sound velocity in both phases. Our result is consistent with chiral perturbation theory in a low $μ$ regime of the superfluid phase including the Bose-Einstein condensed phase, and shows a peak of sound velocity in the high-density BCS phase. We also give detailed simulation results and a comment on the holography bound in this proceedings.
