论文标题
全息图中的均衡性手性涡旋效应
Out of equilibrium Chiral Vortical Effect in Holography
论文作者
论文摘要
我们研究了远离平衡的手性涡旋效应，在强烈的全息磁场理论中。旋转通过五维充电ADS VAIDYA公制的重力磁场表示为扰动。我们还通过线性标量场背景引入了动量松弛机制，并研究CVE动力学作为电荷，温度和动量松弛的功能。远离平衡行为表明，与背景度量的准瞬时平衡相比，CVE的时间延迟显着延迟。我们还特别注意轴向电流CVE对轴向异常的重力贡献的影响。我们开发了该延迟的分析估计值，还计算了在平衡附近的准正常模式，该模式决定了迟到的时间环。
We study the chiral vortical effect far from equilibrium in a strongly coupled holographic field theory. Rotation is represented as a perturbation via a gravito-magnetic field on top of a five-dimensional charged AdS Vaidya metric. We also introduce a momentum relaxation mechanism by linear scalar field backgrounds and study the CVE dynamics as function of the charges, temperature and momentum relaxation. The far from equilibrium behavior shows that the CVE builds up with a significant delay in time compared to the quasi instantaneous equilibration of the background metric. We also pay special attention to the effects of the gravitational contribution to the axial anomaly in the CVE of the axial current. We develop an analytic estimate of this delay and also compute the quasi-normal modes near equilibrium which determine the late time ring down.
