Superadiabatic basis in cosmological particle production: application to preheating
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Cosmology and Astroparticle Physics"
DOI: 10.1088/1475-7516/2021/09/009
Abstract: We discuss the adiabatic basis dependence of particle number in time-dependent backgrounds. In particular, we focus on preheating after inflation, and show that, for the optimal basis, the time dependence of the produced particle number… read more here.
Keywords: basis cosmological; particle production; superadiabatic basis; basis ... See more keywords
Cosmological particle creation in the little bang
Sign Up to like & getrecommendations! Published in 2021 at "Physical Review D"
DOI: 10.1103/physrevd.103.116014
Abstract: Particle production by expanding in the future light cone scalar quantum field is studied by assuming that the initial state is associated with the quasi equilibrium statistical operator corresponding to fluid dynamics. We calculate particle… read more here.
Keywords: creation little; particle creation; little bang; particle production ... See more keywords