Latent heat and pressure gap at the first-order deconfining phase transition of SU(3) Yang?Mills theory using the small flow-time expansion method
Latent heat and pressure gap at the first-order deconfining phase transition of SU(3) Yang?Mills theory using the small flow-time expansion method
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使用小流动时间展开法的 SU(3) Yang?Mills 理论一阶解围相变时的潜热和压力间隙
DOI：
10.1093/ptep/ptaa184
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发表时间：
2020
影响因子：
3.5
通讯作者：
Umeda Takashi
中科院分区：
文献类型：
--
作者：
WHOT-QCD Collaboration;Shirogane Mizuki;Ejiri Shinji;Iwami Ryo;Kanaya Kazuyuki;Kitazawa Masakiyo;Suzuki Hiroshi;Taniguchi Yusuke;Umeda Takashi
我们研究了SU(3) Yang-Mills理论在一阶定义相变温度下的潜热和冷热相之间的压力差。在具有不同空间体积和晶格间距的晶格上进行模拟，我们使用小流时展开（SFX）方法计算能量密度和压力的间隙。我们发现，在相变温度下，潜热的连续极限是长径比。我们还证实了压力间隙与零一致，正如两相的动态平衡所期望的。从能量密度的迟滞曲线可以看出，（亚稳）限定相的能量密度对空间体积敏感，而受限相的能量密度对空间体积不敏感。此外，我们还研究了SFX方法中替代程序的影响-连续统的顺序和消失的流时间外推，以及匹配系数的重整化尺度和高阶修正。我们确认这些替代方案的最终结果都非常一致。
We study latent heat and the pressure gap between the hot and cold phases at the first-order deconfining phase transition temperature of the SU(3) Yang–Mills theory. Performing simulations on lattices with various spatial volumes and lattice spacings, we calculate the gaps of the energy density and pressure using the small flow-time expansion (SFX) method. We find that the latent heatin the continuum limit isfor the aspect ratioandforat the transition temperature. We also confirm that the pressure gap is consistent with zero, as expected from the dynamical balance of two phases at. From hysteresis curves of the energy density near, we show that the energy density in the (metastable) deconfined phase is sensitive to the spatial volume, while that in the confined phase is insensitive. Furthermore, we examine the effect of alternative procedures in the SFX method—the order of the continuum and the vanishing flow-time extrapolations, and also the renormalization scale and higher-order corrections in the matching coefficients. We confirm that the final results are all very consistent with each other for these alternatives.