夸克胶子袋表面张力与色管弦张力的关系
On Relation Between the Quark Gluon Bag Surface Tension and the Colour Tube String Tension
摘要：
在这里，我们重新审视袋现象的退澄清相变补充它系统地介绍袋表面张力。通过比较这种袋的自由能和限制静态夸克-反夸克对的弦的自由能，我们用袋的表面张力和热压力来表示弦的张力，以便利用格点量子色动力学数据来估计袋的特性。我们对袋熵密度的分析表明，表面张力系数在交叉（连续过渡）处是惊人的负。这种方法使我们能够自然地解释束缚静态夸克-反夸克对熵的一个非常明显的最大值（在格点量子色动力学模拟中观察到的）。对临界点附近的情况进行了分析，阐明了表面张力系数消失的意义。
英文摘要：
Here we revisit the bag phenomenology of the deconfining phase transition to replenish it by introducing systematically the bag surface tension. Comparing the free energy of such bags and that one of the strings confining the static quark-antiquark pair, we express the string tension in terms of the bag surface tension and thermal pressure in order to estimate the bag characteristics using the lattice QCD data. Our analysis of the bag entropy density demonstrates that the surface tension coefficient is amazingly negative at the cross-over (continuous transition). This approach allows us to naturally account for an appearance of a very pronounced maximum (observed in the lattice QCD simulations) of the entropy of the bound static quark-antiquark pair. The vicinity of the (tri)critical endpoint is also analyzed to clarify the meaning of vanishing surface tension coefficient.
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