AdS/CFT correspondence, quasinormal modes, and thermal correlators inN=4supersymmetric Yang-Mills theory
| Autor: | Andrei O. Starinets, Alvaro Nunez |
|---|---|
| Rok vydání: | 2003 |
| Předmět: |
Physics
Nuclear and High Energy Physics Thermal quantum field theory Spacetime Scalar (mathematics) Supersymmetry High Energy Physics::Theory General Relativity and Quantum Cosmology AdS/CFT correspondence AdS/QCD correspondence Quantum mechanics Gauge theory Fluctuation spectrum Mathematical physics |
| Zdroj: | Physical Review D. 67 |
| ISSN: | 1089-4918 0556-2821 |
| DOI: | 10.1103/physrevd.67.124013 |
| Popis: | We use the Lorentzian AdS/CFT prescription to find the poles of the retarded thermal Green’s functions of N=4 SU(N) supersymmetric Yang-Mills theory in the limit of large N and large ’t Hooft coupling. In the process, we propose a natural definition for quasinormal modes in an asymptotically AdS spacetime, with boundary conditions dictated by the AdS/CFT correspondence. The corresponding frequencies determine the dispersion laws for the quasiparticle excitations in the dual finite-temperature gauge theory. Correlation functions of operators dual to massive scalar, vector and gravitational perturbations in a five-dimensional AdS-Schwarzschild background are considered. We find asymptotic formulas for quasinormal frequencies in the massive scalar and tensor cases, and an exact expression for vector perturbations. In the long-distance, low-frequency limit we recover results of the hydrodynamic approximation to thermal Yang-Mills theory. |
| Databáze: | OpenAIRE |
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