374 citations · 6.3k across the 173 of their papers we have counts for
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An effective field theory during inflation II: stochastic dynamics and power spectrum suppression
D. Boyanovsky
We obtain the non-equilibrium effective action of an inflaton like scalar field --the system-- by tracing over sub Hubble degrees of freedom of "environmental" light scalar fields.…
The case for mixed dark matter from sterile neutrinos
Louis Lello, Daniel Boyanovsky
Sterile neutrinos are SU(2) singlets that mix with active neutrinos via a mass matrix, its diagonalization leads to mass eigenstates that couple via standard model vertices. We stu…
An effective field theory during inflation: reduced density matrix and its quantum master equation
D. Boyanovsky
We study the power spectrum of super-Hubble fluctuations of an inflaton-like scalar field, the "system", coupled to another scalar field, the "environment" during de Sitter inflati…
Effective Field Theory out of Equilibrium: Brownian quantum fields
D. Boyanovsky
The emergence of an effective field theory out of equilibrium is studied in the case in which a light field --the system-- interacts with very heavy fields in a finite temperature…