The 8th International Conference on Chirality, Vorticity and Magnetic Field in Quantum Matter

Gluon matter under weak acceleration: lattice results

22 juil. 2024, 18:05

5m

Amphitheater A11 (West University of Timisoara)

Flash Talk (Plenary) + Poster Flash talk and posters

Orateur

Dr Maxim Chernodub (CNRS, Université de Tours, France)

Description

When two relativistic heavy nuclei collide, they produce strong chromoelectric fields that lead to a rapid deceleration of the colliding nuclei. It was suggested twenty years ago that the deceleration leads to a rapid thermalization of the gluon matter through the Hawking-Unruh effect that produces a final thermal gluon state via quantum tunneling through the emerging event horizon. In the Color Glass Condensate picture, the deceleration in the relativistic heavy-ion collisions has been estimated to reach an enormous value of $a\simeq 1$ GeV. Around the same time, it was also demonstrated in a Nambu-Jona-Lasinio approach that the acceleration produces a phase transition to a chirally restored phase. In our work, we study the non-perturbative properties of gluon plasma subjected to weak acceleration using first-principle numerical Monte Carlo simulations. Under acceleration, the gluon plasma resides in local thermal equilibrium. We use the Luttinger (Tolman-Ehrenfest) correspondence between temperature gradient and gravitational field to impose acceleration in imaginary time formalism, which can be performed with the real-valued acceleration. We show that even the weakest acceleration of the order of $a\sim 25$ MeV drastically softens the deconfinement phase transition, converting the first-order phase transition of a static system to a very soft crossover. On the other hand, we found that the weak acceleration of gluon plasma does not affect the critical temperature of the deconfinement transition.

Documents de présentation

Chernodub_real_Poster_Chirality2024.pdf

Chernodub_Short_Talk_Chirality2024.pdf