121 citations · 238 across the 13 of their papers we have counts for
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Influence of spatial curvature in cosmological particle production
Jose A. R. Cembranos, Luis J. Garay, Álvaro Parra-López
We analyze cosmological particle production driven by spacetime expansion in the early universe for homogeneous and isotropic cosmologies with positive, negative, and zero spatial…
Estimation of gravitational production uncertainties
Jose A. R. Cembranos, Luis J. Garay, Álvaro Parra-López +1
Cosmological production of scalar, non-minimally coupled dark matter depends on the specifics of the inflationary model under consideration. We analyze both Starobinsky inflation a…
Toward the Observation of Entangled Pairs in BEC analogue Expanding Universes
Ivan Agullo, Adrià Delhom, Álvaro Parra-López
Pair creation is a fundamental prediction of quantum field theory in curved spacetimes. While classical aspects of this phenomenon have been observed, the experimental confirmation…
Cosmological particle production in a quantum field simulator as a quantum mechanical scattering problem
Christian F. Schmidt, Álvaro Parra-López, Mireia Tolosa-Simeón +7
The production of quantum field excitations or particles in cosmological spacetimes is a hallmark prediction of curved quantum field theory. The generation of cosmological perturba…
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…
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…
Scalar quantum fields in cosmologies with 2+1 spacetime dimensions
Natalia Sánchez-Kuntz, Álvaro Parra-López, Mireia Tolosa-Simeón +2
Motivated by the possibility to use Bose-Einstein condensates as quantum simulators for spacetime curvature, we study a massless relativistic scalar quantum field in spatially curv…