Quantum Gravity effect on the Quark-Gluon Plasma

TL;DR

This paper investigates how the Generalized Uncertainty Principle (GUP), predicted by quantum gravity theories, influences the thermodynamics of ideal Quark-Gluon Plasma, especially at high temperatures near the phase transition.

Contribution

It introduces GUP into QGP thermodynamics calculations, revealing significant effects on thermodynamic quantities and their asymptotic behavior at high temperatures.

Findings

GUP significantly affects thermodynamic quantities of QGP.

GUP causes QGP thermodynamics to approach the Stefan-Boltzmann limit.

Thermodynamic quantities are notably altered at high temperatures.

Abstract

The Generalized Uncertainty Principle (GUP), which has been predicted by various theories of quantum gravity near the Planck scale is implemented on deriving the thermodynamics of ideal Quark-Gluon Plasma (QGP) consisting of two massless quark flavors at the hadron-QGP phase equilibrium and at a vanishing chemical potential. The effective degrees of freedom and MIT bag pressure are utilized to distinguish between the hadronic and partonic phases. We find that GUP makes a non-negligible contribution to all thermodynamic quantities, especially at high temperatures. The asymptotic behavior of corresponding QGP thermodynamic quantities characterized by the Stephan-Boltzmann limit would be approached, when the GUP approach is taken into consideration.