论文标题
各向异性热致密QGP中光夸克的全息模型，外部磁场
Holographic model for light quarks in anisotropic hot dense QGP with external magnetic field
论文作者
论文摘要
我们提出了五维各向异性全息模型，该模型由爱因斯坦 - 迪拉特（Einstein-dilaton） - 三个三位一体 - 三大的三维模型描述了光夸克。麦克斯韦第一场提供有限的化学潜力。第二个麦克斯韦场用于各向异性，表征了重型离子碰撞（HIC）产生的QGP的空间各向异性。第三个麦克斯韦场与HIC中出现的磁场有关。考虑了该磁场上5-DIM黑洞溶液的依赖性和限制/解密相图。获得了反磁性催化剂对光夸克相图的效果。发现关键终点的位置。我们还研究了各向同性和各向异性病例中光夸克的电导率的行为，并表明临界点附近的电导率的行为基本上取决于夸克质量，同时在高温下它们相似。
We present a five-dimensional twice anisotropic holographic model supported by Einstein-dilaton-three-Maxwell action describing light quarks. The first of the Maxwell fields provides finite chemical potential. The second Maxwell field serves for anisotropy, characterizing spatial anisotropy of the QGP produced in heavy-ion collisions (HIC). The third Maxwell field is related to a magnetic field that appears in HIC. The dependence of the 5-dim black hole solution and confinement/deconfinement phase diagram on this magnetic field is considered. The effect of the inverse magnetic catalyses for light quarks phase diagram is obtained. Positions of critical end points are found. We also study the behavior of the conductivity for light quarks in both isotropic and anisotropic cases and show that behaviour of the conductivity near critical points essentially depend on quark masses, meanwhile at high temperature they are similar.
