Chern–Simons effect on the dual hydrodynamics in the Maxwell–Gauss–Bonnet gravity
Chern–Simons effect on the dual hydrodynamics in the Maxwell–Gauss–Bonnet gravity
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DOI：
10.1016/j.physletb.2012.07.008
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发表时间：
2011-12
影响因子：
4.4
通讯作者：
Yapeng Hu;Chanyong Park
中科院分区：
文献类型：
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作者：
Yapeng Hu;Chanyong Park
继arXiv：1103.3773 [hep-th]的工作之后，我们对5维Maxwell-Gauss-Bonnet引力中的Chern-Simons效应作了更一般和系统的讨论.在构造了一阶微扰黑膜解后，我们得到了对偶流体的应力张量和电荷流。从这些结果中，我们发现了一些输运系数对Gauss-Bonnet耦合α和Chern-Simons耦合κcs的依赖性。我们还表明，新的反常项可以提供一个额外的贡献反常手征磁导率。
Following the previous work arXiv:1103.3773 [hep-th], we give a more general and systematic discussion on the Chern–Simons effect in the 5-dimensional Maxwell–Gauss–Bonnet gravity. After constructing the first order perturbative black brane solution, we extract the stress tensor and charge current of dual fluid. From these results, we find out the dependence of some transport coefficients on the Gauss–Bonnet coupling α and Chern–Simons coupling κcs. We also show that the new anomalous term can provide an additional contribution to the anomalous chiral magnetic conductivity.