Radiation from an accelerated quark via AdS/CFT

Abstract

In this paper we investigate radiation by an accelerated quark in a strongly coupled gauge theory via AdS/CFT correspondence. According to AdS/CFT dictionary, we can read off energy density or energy flux of the radiation from asymptotic gravitational field in AdS bulk sourced by an accelerated string trailing behind the quark. In the case of an oscillating quark with frequency $\Omega$, we show that the time averaged energy density is asymptotically isotropic and it falls off as $(g_{\text{YM}}^{2}N{)}^{1/2}{\Omega }^4/R^2$ with distance $R$ from the source. In a toy model of a scattered quark by an external field, we simply estimate Poynting vector by the bremsstrahlung radiation and show that the energy flux is anisotropic outgoing radiation. Based on these investigations, we discuss the properties of strongly coupled gauge theory radiation in comparison with electromagnetic radiation.

16 pages, no figures, accepted for publication in Phys. Rev. D

References in corpus (21)

• Gauge Theory Correlators from Non-Critical String Theory
• Viscosity in Strongly Interacting Quantum Field Theories from Black Hole Physics
• Energy loss of a heavy quark moving through N=4 supersymmetric Yang-Mills plasma
• What RHIC Experiments and Theory tell us about Properties of Quark-Gluon Plasma ?
• Drag force in AdS/CFT
• Calculating the Jet Quenching Parameter from AdS/CFT
• Heavy Quark Diffusion in Strongly Coupled $\mathbb{N}=4$ Yang Mills
• Why does the Quark-Gluon Plasma at RHIC behave as a nearly ideal fluid ?
• Energy Loss of Heavy Quarks from Asymptotically AdS Geometries
• Vacua, Propagators, and Holographic Probes in AdS/CFT
• Sonic booms and diffusion wakes generated by a heavy quark in thermal AdS/CFT
• Viscosity of gauge theory plasma with a chemical potential from AdS/CFT correspondence
• The stress tensor of a quark moving through N=4 thermal plasma
• On jet quenching parameters in strongly coupled non-conformal gauge theories
• Holography of Radiation and Jet Quenching
• Drag Force in a Charged N=4 SYM Plasma
• Dissipation from a heavy quark moving through N=4 super-Yang-Mills plasma
• Energy disturbances due to a moving quark from gauge-string duality
• Undulating Strings and Gauge Theory Waves
• Master field treatment of metric perturbations sourced by the trailing string
• Universality of the diffusion wake in the gauge-string duality

Cited by in corpus (6)

• Acceleration, Energy Loss and Screening in Strongly-Coupled Gauge Theories
• Holographic Lessons for Quark Dynamics
• A Tail of a Quark in N=4 SYM
• Radiation and a dynamical UV/IR connection in AdS/CFT
• On radiation by a heavy quark in N = 4 SYM
• QCD, with Strings Attached