299 citations · 301 across the 5 of their papers we have counts for
6 papers
The alternative scalar field dark sector of the Universe: Cosmological inflation, quintessence and ekpyrotic model in the framework of scalar-tensor cosmology
Marcin Postolak
This dissertation investigates scalar field descriptions of the dark sector (of the Universe), with emphasis on scalar-tensor cosmology, inflationary effective field theory, quinte…
Phase-resolved field-space distance criteria in ekpyrotic, bouncing and cyclic cosmologies
Marcin Postolak
The inflationary Lyth bound relates the primordial tensor amplitude to the inflaton field excursion. In ekpyrotic, bouncing and cyclic cosmologies there is no analogous universal t…
Non-minimally coupled scalar field dark sector of the universe: in-depth (Einstein frame) case study
Marcin Postolak
In this study, motivated by recent results from DESI DR2 indicating a possible preference for evolving dark energy in some combined data analyses, we analyze spatially flat FLRW in…
The CosmoVerse White Paper: Addressing observational tensions in cosmology with systematics and fundamental physics
Eleonora Di Valentino, Jackson Levi Said, Adam Riess +533
The standard model of cosmology has provided a good phenomenological description of a wide range of observations both at astrophysical and cosmological scales for several decades.…
Did the Big Bang and cosmic inflation really happen? (A tale of alternative cosmological models)
Marcin Postolak
A popular science article designed to introduce people familiar with basic cosmological nomenclature with models alternative to cosmological inflation. The paper briefly discusses…
Is it possible to separate baryonic from dark matter within the -CDM formalism?
Andrzej Borowiec, Marcin Postolak
We found general solutions of matter stress-energy (non-)conservation in scalar-tensor FLRW-type cosmological models by extending the logotropic formalism to the case of non-minima…