Brighter Branes, enhancement of photon production by strong magnetic fields in the gauge/gravity correspondence

Abstract

We use the gauge/gravity correspondence to calculate the rate of photon production in a strongly coupled N=4 plasma in the presence of an intense magnetic field. We start by constructing a family of back reacted geometries that include the black D3-brane solution, as a smooth limiting case for B=0, and extends to backgrounds with an arbitrarily large constant magnetic field. This family provides the gravitational dual of a field theory in the presence of a very strong magnetic field which intensity can be fixed as desired and allows us to study its effect on the photon production of a quark-gluon plasma. The inclusion of perturbations in the electromagnetic field on these backgrounds is consistent only if the metric is perturbed as well, so we use methods developed to treat operator mixing to manage these general perturbations. Our results show a clear enhancement of photon production with a significant anisotropy, which, in qualitative agreement with the experiments of heavy ion collisions, is particularly noticeable for low P.

This paper was replaced including metric perturbations for consistency of the calculation, and reports important qualitative changes. 43 pages

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
• Dissipative Dynamics of Highly Anisotropic Systems
• Photon and dilepton production in supersymmetric Yang-Mills plasma
• On String Theory Duals of Lifshitz-like Fixed Points
• Holographic RG flow of the shear viscosity to entropy density ratio in strongly coupled anisotropic plasma
• Photoemission with Chemical Potential from QCD Gravity Dual
• Bright branes for strongly coupled plasmas
• Towards the description of anisotropic plasma at strong coupling
• Jet quenching in a strongly coupled anisotropic plasma
• Holographic Photon Production with Magnetic Field in Anisotropic Plasmas
• Thermal photon production in a strongly coupled anisotropic plasma
• Quarkonium dissociation by anisotropy
• The Imaginary Part of the Static Potential in Strongly Coupled Anisotropic Plasma
• Quark Soup al dente: Applied Superstring Theory

Cited by in corpus (18)

• Inverse magnetic catalysis in holographic models of QCD
• Holographic model for light quarks in anisotropic hot dense QGP with external magnetic field
• Prompt photon yield and elliptic flow from gluon fusion induced by magnetic fields in relativistic heavy-ion collisions
• Conductivities of magnetic quark-gluon plasma at strong coupling
• Direct photons emission rate and electric conductivity in twice anisotropic QGP holographic model with first-order phase transition
• Holographic renormalization and anisotropic black branes in higher curvature gravity
• Chaos, Diffusivity, and Spreading of Entanglement in Magnetic Branes, and the Strengthening of the Internal Interaction
• Thermal photon production from gluon fusion induced by magnetic fields in relativistic heavy-ion collisions
• Thermodynamics of anisotropic branes
• Melting holographic mesons by cooling a magnetized quark gluon plasma
• Anisotropic photon emission from gluon fusion and splitting in a strong magnetic background I: The two-gluon one-photon vertex
• Increase of the Energy Necessary to Probe Ultraviolet Theories Due to the Presence of a Strong Magnetic Field
• Dilepton Helical Production in a Vortical Quark-Gluon Plasma
• Velocity Statistics in Holographic Fluids: Magnetized Quark-Gluon Plasma and Superfluid Flow
• Instability of a magnetized QGP sourced by a scalar operator
• Darker and brighter branes: Suppression and enhancement of photon production in a strongly coupled magnetized plasma
• Two-gluon one-photon vertex in a magnetic field and its explicit one-loop approximation in the intermediate field strength regime
• Scale invariance with fundamental matters and anomaly: A holographic description