Transport properties of quark-gluon plasma under extreme conditions

Seminars

Bogoliubov Laboratory of Theoretical Physics

Seminar “Theory of Hadronic Matter under Extreme Conditions

Date and Time: Wednesday, 28 May 2025, at 4:00 PM

Venue: Blokhintsev Lecture Hall, Bogoliubov Laboratory of Theoretical Physics, online on Zoom

Seminar topic: “Transport properties of quark-gluon plasma under extreme conditions: A kinetic theory approach”

Speaker: Jayanta Dey

Abstract:

In this seminar I will talk about transport properties of quark-gluon plasma (QGP) produced in heavy-ion collisions (HICs). A substantial electromagnetic field is believed to generate at the early stage of peripheral HICs, which diminishes quickly depending on the electrical conductivity of the medium. The magnetic fields anisotropize thermodynamic and transport properties of the created nuclear matter, such as shear viscosity breaking up into five independent components and conductivity into three. Here, I will briefly describe a kinetic theory formalism to calculate transport coefficients related to the momentum and charge diffusion by solving the relativistic Boltzmann transport equation under relaxation time approximation. In the second part of the talk, I will discuss results of estimation of various transport coefficients of QGP under extreme conditions like magnetic fields and high baryon chemical potential, using different models, such as the quasi particle model and hadron resonance gas models. Moreover, I will discuss the relevant phenomenological effects, such as induction of electromagnetic fields by thermoelectric transport, charm fluctuation, etc.