标题： Klebanov-Witten理论中希格斯相变的动力学 显示英文标题

标题： Dynamics of a Higgs phase transition in the Klebanov-Witten theory

摘要： 我们研究在非零温度和化学势下强耦合规范理论中一阶相变的动力学，从第一性原理计算成核率和壁速。 该规范理论是四维超共形SU(N)xSU(N) Klebanov-Witten理论，在低温下表现出形成标量凝聚物的不稳定性，这会将理论对称性破缺。 通过利用引力对偶，即IIB型弦理论在渐近AdS_5xT^{1,1}空间中的表现，这一计算成为可能。 不稳定性通过体内的D膜成核和随后的定位来检测，在探测器极限下可进行计算。 成核率表明，当温度降低到临界值以下时，两个规范群之间存在更大的不对称性偏好。 壁速在所有参数值下都低于共形等离子体的声速，并且对两个相之间的能量差表现出非线性依赖。 显示英文摘要

摘要： We study the dynamics of a first-order phase transition in a strongly coupled gauge theory at non-zero temperature and chemical potential, computing nucleation rates and wall speeds from first principles. The gauge theory is the four-dimensional superconformal SU(N)xSU(N) Klebanov-Witten theory, which at low temperatures displays an instability to forming scalar condensates that higgses the theory. The computation is made possible by utilizing the gravity dual, type IIB string theory on asymptotically AdS_5xT^{1,1} spacetimes. The instability is detected through the nucleation and subsequent localization of D-branes in the bulk, which in the probe limit is amenable to calculations. The nucleation rates suggest a preference for greater asymmetry between the two gauge groups as the temperature is lowered beyond its critical value. The wall speed stays below the speed of sound of the conformal plasma across all parameter values and exhibits nonlinear dependence on the energy difference between the two phases.