Production of Prompt Photons: Holographic Duality and Thermalization

TL;DR

This paper investigates prompt photon production during thermalization in strongly coupled plasma using holography, providing analytical insights into the photon emission spectrum at high frequencies during out-of-equilibrium dynamics.

Contribution

It introduces a holographic model of thermalization via gravitational collapse to analyze prompt photon emission in strongly coupled plasma, with analytical results at large frequencies.

Findings

Analytical photon spectrum at high frequencies during thermalization

Holographic modeling of out-of-equilibrium plasma dynamics

Insights into photon production during non-equilibrium stages

Abstract

We study the production of prompt photons in strongly coupled out-of-equilibrium Super Yang-Mills plasma using the AdS/CFT correspondence. Our goal is to determine the photon emission spectrum at different stages of a thermalization process, which is modeled via the gravitational collapse of a thin spherical shell in AdS$_5$ space. Particular emphasis is placed on the limit of large frequencies, which we are able to treat analytically.