Cross-over versus first-order phase transition in holographic gravity-single-dilaton models of QCD thermodynamics

Abstract

A dilaton potential is adjusted to recently confirmed lattice QCD thermodynamics data in the temperature range $(0.7\dots 3.5)T_c$ where $T_c=155\text{MeV}$ is the pseudo-critical temperature. The employed holographic model is based on a gravity--single-field dilaton dual. We discuss conditions for enforcing (for the pure gluon plasma) or avoiding (for the QCD quark-gluon plasma) a first-order phase transition, but still keeping a softest point (minimum of sound velocity).

11 pages, 9 figures

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• Chiral and Deconfining Phase Transitions from Holographic QCD Study
• Energy loss, equilibration, and thermodynamics of a baryon rich strongly coupled quark-gluon plasma
• A holographic study on QCD phase transition and phase diagram with two flavors
• Correlations between the deconfining and chiral transitions in holographic QCD
• Holographically emulating sequential versus instantaneous disappearance of vector mesons in a hot environment
• Phases of a 10-D Holographic hard wall model
• Chern-Simons diffusion rate across different phase transitions
• Holography at QCD-$T_{\mathrm{c}}$
• Randall-Sundrum Model with a Dilaton Field at Finite Temperature