Quasinormal modes and holography
Quasinormal modes and holography
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DOI：
10.1103/physrevd.72.086009
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发表时间：
2005-06
影响因子：
5
通讯作者：
P. Kovtun;A. Starinets
中科院分区：
文献类型：
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作者：
P. Kovtun;A. Starinets
在全息对偶有限温度场论中，渐近反de Sitter时空中电磁扰动和引力扰动的准正规频率可以用相应的实时格林函数的极点来识别。对于规范不变量，定义了准正则模，这些量在视界满足入射波边界条件，在边界满足Dirichlet条件。作为应用，我们在大Nc极限下，显式地求出了强耦合有限温度N=4超对称SU(NC)Yang-Mills理论中R对称电流的延迟关联函数极点和能量动量张量。
Quasinormal frequencies of electromagnetic and gravitational perturbations in asymptotically anti-de Sitter spacetime can be identified with poles of the corresponding real-time Green's functions in a holographically dual finite temperature field theory. The quasinormal modes are defined for gauge-invariant quantities which obey an incoming-wave boundary condition at the horizon and a Dirichlet condition at the boundary. As an application, we explicitly find poles of retarded correlation functions of R-symmetry currents and the energy-momentum tensor in strongly coupled finite temperature N=4 supersymmetric SU(Nc) Yang-Mills theory in the limit of large Nc.