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arXiv 1303.6300hep-phhep-th
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空化对约束/解除约束过渡的影响

Cavitation effects on the confinement/deconfinement transition

Alex Buchel, Xian O. Camanho, Jose D. Edelstein

摘要:

空化是相对论性流体中的粘性项导致有效压力降低,从而促进稳定相的气泡成核的过程。这种效应在(弱)一阶相变附近特别明显。我们利用全息对应研究了强耦合平面级联规范理论等离子体中接近禁闭/解除禁闭相变的空化现象。虽然在这个特定的模型中,由于空化的解除禁闭温度的移动不超过5%,我们推测,空化可能是重要的QCD临界点附近。

英文摘要:

Cavitation is a process where the viscous terms in a relativistic fluid result in reducing the effective pressure, thus facilitating the nucleation of bubbles of a stable phase. The effect is particularly pronounced in the vicinity of a (weak) first-order phase transition. We use the holographic correspondence to study cavitation in a strongly coupled planar cascading gauge theory plasma close to the confinement/deconfinement phase transition. While in this particular model the shift of the deconfinement temperature due to cavitation does not exceed 5%, we speculate that cavitation might be important near the QCD critical point.

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