论文标题
域壁广告/QCD中的热过渡
Thermal Transitions in Domain Wall AdS/QCD
论文作者
论文摘要
我们研究域壁广告/QCD模型中的热跃迁。该模型基于具有不连续的质量轮廓的D5/探针D7系统，该系统将手性费米子限制在3+1维域壁上。域壁上的波动对夸克质量和冷凝物是双重的，并揭示了域壁分离与夸克质量之间的关系。巨大的夸克表现出二阶热介子融化过渡。 Witten的多条形处方可用于将这些配置解释为具有Nambu-Jona-Lasinio相互作用的动力学质量 - 这里的过渡是一阶。可以通过压实D5的一个方向来将限制引入量规部门。紧凑型会引起手性对称性破裂，并且有一阶热恢复过渡。如果还引入了NJL相互作用，则可以分开限制和手性对称性断裂尺度。
We study thermal transitions in a Domain Wall AdS/QCD model. The model is based on the D5/probe D7 system with a discontinuous mass profile which restricts chiral fermions to 3+1 dimensional domain walls. Fluctuations on the domain wall are dual to the quark mass and condensate and reveal the relation between domain wall separation and the quark mass. The massive quarks exhibit a second order thermal, meson melting transition. Witten's multi-trace prescription can be used to interpret these configurations as having a dynamical mass from a Nambu-Jona-Lasinio interaction - here the transition is first order. Confinement can be introduced into the gauge sector by compactifying one direction of the D5. Compactification induces chiral symmetry breaking and there is a first order thermal restoration transition. If an NJL interaction is also introduced then the confinement and chiral symmetry breaking scales can be separated.
