https://doi.org/10.1140/epjc/s10052-015-3513-7
Letter
Cross-over versus first-order phase transition in holographic gravity–single-dilaton models of QCD thermodynamics
1
Helmholtz-Zentrum Dresden-Rossendorf, POB 51 01 19, 01314, Dresden, Germany
2
Institut für Theoretische Physik, TU Dresden, 01062, Dresden, Germany
* e-mail: r.yaresko@hzdr.de
Received:
8
April
2015
Accepted:
10
June
2015
Published online:
27
June
2015
A dilaton potential is adjusted to recently confirmed lattice QCD thermodynamics data in the temperature range where 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).
© The Author(s), 2015