Speaker
Dr
Chandrodoy Chattopadhyay
(North Carolina State University, USA)
Description
The hydrodynamic evolution of a quark-gluon gas with non-zero quark masses and net baryon number is explored. For far-off-equilibrium initial conditions the expansion trajectories appear to violate simple rules based on the second law of thermodynamics. For Bjorken flow we present a detailed analysis within kinetic theory that provides a full microscopic understanding of these macroscopic phenomena and establish their thermodynamic consistency. We also demonstrate that, for certain far-off-equilibrium initial conditions, the well-known phenomenon of “viscous heating” turns into “viscous cooling” where, driven by dissipative effects, the temperature decreases faster than in adiabatic expansion.
Primary author
Dr
Chandrodoy Chattopadhyay
(North Carolina State University, USA)
Co-authors
Prof.
Ulrich Heinz
Prof.
Thomas Schaefer
