15 papers
Primordial magnetic fields from cosmological phase transitions
D. Boyanovsky, H. J. de Vega, M. Simionato
We study the generation of large scale primordial magnetic fields by a cosmological phase transition during the radiation dominated era. The setting is a theory of N charged scalar…
Phase transitions in the early and the present Universe: from the big bang to heavy ion collisions
D. Boyanovsky
In these lectures I discuss cosmological phase transitions with the goal of establishing the possibility of observational consequences. I argue that the {\em only} phase transition…
Direct photons: a nonequilibrium signal of the expanding quark-gluon plasma
Shang-Yung Wang, Daniel Boyanovsky, Kin-Wang Ng
Direct photon production from a longitudinally expanding quark-gluon plasma (QGP) at Relativistic Heavy Ion Collider (RHIC) and Large Hadron Collider (LHC) energies is studied with…
Out of Equilibrium Fields in Self-consistent Inflationary Dynamics. Density Fluctuations
D. Boyanovsky, H. J. de Vega
The physics during the inflationary stage of the universe is of quantum nature involving extremely high energy densities. Moreover, it is out of equilibrium on a fastly expanding d…
Real-time nonequilibrium dynamics in hot QED plasmas: dynamical renormalization group approach
S. -Y. Wang, D. Boyanovsky, H. J. de Vega +1
We study the real-time nonequilibrium dynamics in hot QED plasmas implementing a dynamical renormalization group and using the hard thermal loop (HTL) approximation. The focus is o…
Dynamics of Symmetry Breaking Out of Equilibrium: From Condensed Matter to QCD and the Early Universe
D. Boyanovsky, H. J. de Vega
The dynamics of symmetry breaking during out of equilibrium phase transitions is a topic of great importance in many disciplines, from condensed matter to particle physics and earl…