1.1k citations · 1.3k across the 14 of their papers we have counts for
7 papers · 1 filter
Renormalisation of out-of-equilibrium quantum fields
Szabolcs Borsanyi, Urko Reinosa
We consider the initial value problem and its renormalisation in the framework of the two-particle-irreducible (2PI) effective action. We argue that in the case of appropriately ch…
Non-equilibrium Goldstone phenomenon in tachyonic preheating
Sz. Borsanyi, A. Patkos, D. Sexty
The dominance of the direct production of elementary Goldstone waves is demonstrated in tachyonic preheating by numerically determining the evolution of the dispersion relation, th…
Nonequilibrium Goldstone phenomenon in Hybrid Inflation
Sz. Borsanyi, A. Patkos, D. Sexty
We study the onset of Goldstone phenomenon in a hybrid inflation scenario. The physically motivated range of parameters is analyzed in order to meet the cosmological constraints. C…
Goldstone excitations from spinodal instability
Sz. Borsanyi, A. Patkos, D. Sexty
The squared mass of a complex scalar field is turned dynamically into negative by its O(2)-invariant coupling to a real field slowly rolling down in a quadratic potential. The emer…
Ising-like dynamical signatures and the end-point of the QCD transition line
Sz. Borsanyi, A. Patkos, D. Sexty +1
An increase in the size of coherent domains in the one component field theory under the influence of a uniformly changing external magnetic field near the critical end-point…
Relaxation of 2+1 dimensional classical O(2) symmetric scalar fields
Sz. Borsanyi, Zs. Szep
Real time thermalization and relaxation phenomena are studied in the low energy density phase of the 2+1 dimensional classical O(2) symmetric scalar theory by solving numerically i…
Dynamical Manifestation of the Goldstone Phenomenon at 1-loop
Sz. Borsanyi, A. Patkos, Zs. Szep
We have calculated the damping rate for classical on-shell Goldstone modes of the O(2) symmetric scalar fields propagating in a thermal medium of the broken symmetry…