Ponente
Álvaro Parra-López
Descripción
Particle production from the vacuum due to a time-dependent geometry is a well-known phenomenon in quantum field theory in curved spacetimes and plays a significant role in the early Universe as spacetime evolves rapidly. In this work, we investigate particle production for spectator scalar and vector fields non-minimally coupled to gravity, accounting for the full dynamics of spacetime during inflation and reheating. We analyze the conditions under which this mechanism can generate the observed dark matter abundance, assuming these fields interact solely through gravity. Our results offer insight into the viability of spacetime dynamics as a fundamental mechanism for dark matter production and its potential implications for Cosmology.
Autores primarios
Prof.
Jose A. R. Cembranos
(Complutense University of Madrid and IPARCOS)
Dr.
Jose M. Sánchez-Velázquez
Prof.
Luis J. Garay
Álvaro Parra-López
