Unraveling the effect of rotation on the confinement/deconfinement transition of the quark-gluon plasma

TL;DR

This paper investigates how rotation affects the confinement/deconfinement transition in quark-gluon plasma, resolving apparent contradictions in previous studies by considering different observational frames using holographic models.

Contribution

It clarifies the impact of observer choice on the perceived effects of rotation on QGP phase transitions using a holographic approach.

Findings

For a static observer, the critical temperature decreases with angular velocity.

For a co-rotating observer, the critical temperature increases with angular velocity.

Results reconcile previous conflicting findings in the literature.

Abstract

There is an apparent contradiction in the current literature about the effect of rotation in the quark gluon plasma (QGP). While results from lattice QCD predict an increase in the confinement/deconfinement critical temperature, approximated calculations and effective models, including holographic ones, lead to the opposite result. Non central heavy ion collisions form QGPs with relativistic rotational velocities. Thereby, a great interest was drawn into the effect of rotation in strongly interacting matter. In this work, we show that the apparent contradiction is associated with the choices of observer considered in each case. We consider a holographic description of a rotating plasma using a Myers-Perry black hole. For a static observer, the result is that the confinement/deconfinement temperature decreases with the angular velocity, while for an observer co-rotating with the plasma the opposite behavior is found, in agreement with lattice calculations.