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Gravitational Anomaly and Hydrodynamics

机译:引力异常和流体动力学

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摘要

We study the anomalous induced current of a vortex in a relativistic fluid via the chiral vortical effect, which is analogous to the anomalous current induced by a magnetic field via the chiral magnetic effect. We perform this analysis at weak and strong coupling. We discuss inequivalent implementations to the chemical potential for an anomalous symmetry. At strong coupling we use a holographic model with a pure gauge and mixed gauge-gravitational Chern-Simons term in the action. We discuss the holographic renormalization and show that the Chern-Simons terms do not induce new divergences. Strong and weak coupling results agree precisely. We also point out that the holographic calculation can be done without a singular gauge field configuration on the horizon of the black hole.
机译:我们通过手性志性效应研究相对论流体中涡流的异常感应电流,这与通过手性磁影磁场引起的异常电流类似。我们以弱和强耦合进行此分析。我们讨论了对异常对称的化学潜力的不平等实现。在强大的耦合下,我们使用全息模型,在动作中使用纯粹的仪表和混合仪 - 重力Chern-Simons术语。我们讨论全息重整化,并表明Chern-Simons术语不会引起新的分歧。强大而弱的耦合结果正准确。我们还指出,全息计算可以在黑洞的地平线上没有奇异的仪表场配置来完成。

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