Holographic current correlators at finite coupling and scattering off a supersymmetric plasma
arXiv:0912.4704 · doi:10.1007/JHEP04(2010)012
Abstract
By studying the effect of the order(α'^3) string theory corrections to type IIB supergravity, including those corrections involving the Ramond-Ramond five-form field strength, we obtain the corrected equations of motion of an Abelian perturbation of the AdS_5-Schwarzschild black hole. We then use the gauge theory/string theory duality to examine the coupling-constant dependence of vector current correlators associated to a gauged U(1) sub-group of the global R-symmetry group of strongly-coupled N=4 supersymmetric Yang-Mills theory at finite temperature. The corrections induce a set of higher-derivative operators for the U(1) gauge field, but their effect is highly suppressed. We thus find that the order(α'^3) corrections affect the vector correlators only indirectly, through the corrected metric. We apply our results to investigate scattering off a supersymmetric Yang-Mills plasma at low and high energy. In the latter regime, where Deep Inelastic Scattering is expected to occur, we find an enhancement of the plasma structure functions in comparison with the infinite 't Hooft coupling result.
38 pages, 6 figures, minor clarifications added, typos corrected, references added
References in corpus (15)
- Viscosity in Strongly Interacting Quantum Field Theories from Black Hole Physics
- Minkowski-space correlators in AdS/CFT correspondence: recipe and applications
- Schwinger-Keldysh Propagators from AdS/CFT Correspondence
- Photon and dilepton production in supersymmetric Yang-Mills plasma
- Higher Derivative Gravity, Causality and Positivity of Energy in a UV complete QFT
- Gauge/gravity duality and thermalization of a boost-invariant perfect fluid
- Quantum corrections to eta/s
- Resolving disagreement for eta/s in a CFT plasma at finite coupling
- Universal holographic hydrodynamics at finite coupling
- Jet quenching at finite `t Hooft coupling and chemical potential from AdS/CFT
- Deep inelastic scattering off a N=4 SYM plasma at strong coupling
- Higher derivative effects on eta/s at finite chemical potential
- Polarized DIS in N=4 SYM: Where is spin at strong coupling?
- Non Perturbative Effects in QCD
- Parton picture for the strongly coupled SYM plasma