Thermal entropy of a quark-antiquark pair above and below deconfinement from a dynamical holographic QCD model

Understand

We discuss the entropy carried by a quark-antiquark pair, in particular across the deconfinement transition.

• We therefore rely on a self-consistent solution to Einstein-Maxwell-dilaton gravity, capable of mimicking essential features of QCD.
• In particular we introduce a novel model that still captures well the QCD confinement and deconfinement phases, while allowing the introduction of a temperature in a phase which resembles the confined phase, this thanks to it being dual to a small black hole.
• We pay due attention to some subtleties of such model.