276 citations · 6k across the 152 of their papers we have counts for
5 papers · 1 filter
Thermal effects on slow-roll dynamics
Gert Aarts, Anders Tranberg
A description of the transition from the inflationary epoch to radiation domination requires the understanding of quantum fields out of thermal equilibrium, particle creation and t…
Transport and spectral functions in high-temperature QCD
Gert Aarts
The current status of transport coefficients in relativistic field theories at high temperature is reviewed. I contrast weak coupling results obtained using kinetic theory/diagramm…
Charmonium at high temperature in two-flavor QCD
Gert Aarts, Chris Allton, Mehmet Bugrahan Oktay +2
We compute charmonium spectral functions in 2-flavor QCD on anisotropic lattices using the maximum entropy method. Our results suggest that the S-waves (J/psi and eta_c) survive up…
Spectral functions at small energies and the electrical conductivity in hot, quenched lattice QCD
Gert Aarts, Chris Allton, Justin Foley +2
In lattice QCD, the Maximum Entropy Method can be used to reconstruct spectral functions from euclidean correlators obtained in numerical simulations. We show that at finite temper…
Particle creation and warm inflation
Gert Aarts, Anders Tranberg
During cosmological inflation, it has been suggested that fields coupled to the inflaton can be excited by the slow-rolling inflaton into a quasi-stable non-vacuum state. Within th…