56 citations · 161 across the 7 of their papers we have counts for
7 papers
Cosmological perturbations with ultralight vector dark matter fields: numerical implementation in CLASS
Tomás Ferreira Chase, Matías Leizerovich, Diana López Nacir +1
In this work we consider a dark matter candidate described by an ultralight vector field, whose mass is in principle in the range . T…
Self-Interacting Dark Matter in Cosmology: accurate numerical implementation and observational constraints
Rafael Yunis, Carlos R. Argüelles, Claudia G. Scóccola +2
This paper presents a systematic and accurate treatment of the evolution of cosmological perturbations in self-interacting dark matter models, for particles which decoupled from th…
or Not : Testing the Simplest Inflationary Potential
Paolo Creminelli, Diana López Nacir, Marko Simonović +2
The simplest inflationary model represents the benchmark for future constraints. For a quadratic potential, the quantity vanishes (…
Hartree approximation in curved spacetimes revisited II: The semiclassical Einstein equations and de Sitter self-consistent solutions
Diana L. López Nacir, Francisco D. Mazzitelli, Leonardo G. Trombetta
We consider the semiclassical Einstein equations (SEE) in the presence of a quantum scalar field with self-interaction . Working in the Hartree truncation of the two-particle…
The Hartree approximation in curved spacetimes revisited I: the effective potential in de Sitter
Diana L. López Nacir, Francisco D. Mazzitelli, Leonardo G. Trombetta
We consider a quantum scalar field with λϕ^4 interaction in curved spacetimes. The quantum effects are taken into account nonperturbatively using the Hartree approximation to the 2…
Lifshitz scalar fields: one loop renormalization in curved backgrounds
Diana L. López Nacir, Francisco D. Mazzitelli, Leonardo G. Trombetta
We consider an interacting Lifshitz field with z=3 in a curved spacetime. We analyze the renormalizability of the theory for interactions of the form lambda phi^n, with arbitrary e…