62 citations · 158 across the 8 of their papers we have counts for
8 papers
Inflationary Perturbations and Precision Cosmology
Salman Habib, Andreas Heinen, Katrin Heitmann +1
Inflationary cosmology provides a natural mechanism for the generation of primordial perturbations which seed the formation of observed cosmic structure and lead to specific signal…
Nonequilibrium dynamics in scalar hybrid models
Jurgen Baacke, Andreas Heinen
We study by numerical simulations the transition from the metastable "false vacuum" to the broken symmetry phase in the preheating stage after cosmic inflation in a scalar hybrid m…
Characterizing Inflationary Perturbations: The Uniform Approximation
Salman Habib, Andreas Heinen, Katrin Heitmann +2
The spectrum of primordial fluctuations from inflation can be obtained using a mathematically controlled, and systematically extendable, uniform approximation. Closed-form expressi…
Out-of-equilibrium evolution of quantum fields in the hybrid model with quantum back reaction
Jurgen Baacke, Andreas Heinen
The hybrid model with a scalar "inflaton" field coupled to a "Higgs" field with a broken symmetry potential is one of the promising models for inflation and (p)reheating after infl…
Quantum dynamics of Phi**4 field theory beyond leading order in 1+1 dimensions
Jurgen Baacke, Andreas Heinen
We consider the out-of-equilibrium evolution of a classical condensate field and its quantum fluctuations for a model in 1+1 dimensions with a double well potential.…
Nonequilibrium evolution of Phi**4 theory in 1+1 dimensions in the 2PPI formalism
Jurgen Baacke, Andreas Heinen
We consider the out-of-equilibrium evolution of a classical condensate field and its quantum fluctuations for a Phi**4 model in 1+1 dimensions with a symmetric and a double well po…