| Issue |
EPJ Web Conf.
Volume 274, 2022
XVth Quark Confinement and the Hadron Spectrum Conference (ConfXV)
|
|
|---|---|---|
| Article Number | 05015 | |
| Number of page(s) | 8 | |
| Section | 5 - Parallel Track D | |
| DOI | https://doi.org/10.1051/epjconf/202227405015 | |
| Published online | 22 December 2022 | |
https://doi.org/10.1051/epjconf/202227405015
Colliding poles with colliding nuclei
Institut für Theoretische Physik, Technische Universität Wien, Wiedner Hauptstr. 8-10, A-1040 Vienna, Austria
* e-mail: alexander.soloviev@tuwien.ac.at
Published online: 22 December 2022
In these proceedings, I will discuss collisions of poles in the complex plane as a signature of phase transitions for theories relevant to the quark gluon plasma. I will begin with an illustrative example, namely the chiral phase transition, which can be characterized by colliding poles as a function of temperature. Then, recognizing the interplay between weak and strong coupling sectors in a typical collision, I will introduce a hybrid model with a weakly broken symmetry, which has a rich quasi-hydrodynamic phenomenological description where hydrodynamic and non-hydrodynamic poles are unified by a common dispersion relation. I will show that energy is transferred initially from the soft to the hard sector before irreversibly transferring back to the soft sector at late times, and that the model reproduces many features common to dissipative systems with a weakly broken symmetry including the k-gap.
© The Authors, published by EDP Sciences, 2022
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