Probing the pattern of holographic thermalization with photons
arXiv:1304.3404
Abstract
We investigate the behavior of the retarded Green's function of a U(1) gauge field in holographic N=4 Super Yang-Mills plasma, taking the leading strong coupling corrections into account. First, we use the thermal limit of this quantity to determine the flow of the photon quasinormal mode spectrum away from the infinite 't Hooft coupling limit, and after this specialize to a specific model of holographic thermalization, in which we evaluate the corresponding spectral density. In the latter case, our primary interest lies in the pattern, with which the spectral density approaches its equilibrium form, and how this process depends on the value of the coupling as well as the photon virtuality. All of the results obtained point consistently towards the weakening of the usual top/down pattern of holographic thermalization, once the coupling is decreased from the λ=infinity limit.
arXiv comment22 pages, 6 figures
References in corpus (22)
- Energy loss of a heavy quark moving through N=4 supersymmetric Yang-Mills plasma
- Quasinormal modes and holography
- Bottom-up thermalization in heavy ion collisions
- First Results from Pb+Pb collisions at the LHC
- Horizon formation and far-from-equilibrium isotropization in supersymmetric Yang-Mills plasma
- The characteristics of thermalization of boost-invariant plasma from holography
- Photon and dilepton production in supersymmetric Yang-Mills plasma
- AdS/CFT correspondence, quasinormal modes, and thermal correlators in N=4 SYM
- Quantum corrections to eta/s
- Next-to-leading order thermal photon production in a weakly coupled quark-gluon plasma
- Thermalization with a chemical potential from AdS spaces
- Thermalization of the spectral function in strongly coupled two dimensional conformal field theories
- Holographic thermalization with radial flow
- Higher derivative terms including the Ramond-Ramond five-form
- Dynamics of holographic thermalization
- Diagnostics of plasma photoemission at strong coupling
- Holographic dilepton production in a thermalizing plasma
- Plasma photoemission from string theory
- On alpha'-corrections to D-brane solutions
- Thermalization from gauge/gravity duality: Evolution of singularities in unequal time correlators
- Dilaton emission and absorption from far-from-equilibrium non-abelian plasma
- Highlights from BNL-RHIC