121 citations · 238 across the 13 of their papers we have counts for
3 papers · 1 filter
Vector dark matter production during inflation and reheating
Jose A. R. Cembranos, Luis J. Garay, Álvaro Parra-López +1
Gravitational particle production of spectator fields due to the expansion universe during the inflationary and reheating phases of the early universe is of particular interest in…
Operational realization of quantum vacuum ambiguities
Álvaro Álvarez-Domínguez, José A. R. Cembranos, Luis J. Garay +3
We provide a reinterpretation of the quantum vacuum ambiguities that one encounters when studying particle creation phenomena due to an external and time-dependent agent. We propos…
Late vacuum choice and slow roll approximation in gravitational particle production during reheating
Jose A. R. Cembranos, Luis J. Garay, Álvaro Parra-López +1
In the transition between inflation and reheating, the curvature scalar typically undergoes oscillations which have significant impact on the density of gravitationally produced pa…