299 citations · 303 across the 14 of their papers we have counts for
8 papers · 1 filter
Automatic detection of fast oscillations of dark matter scalar field and updated cosmological constraints on QCDM
Amin Aboubrahim, Pran Nath
It is well known that a scalar field dark matter with a quadratic potential undergoes fast oscillations when the time period represented by the mass scale in the Klein-Gordon equat…
Gravitational waves from supercooled phase transitions and pulsar timing array signals
Jinzheng Li, Pran Nath
The recent detection of a gravitational wave background in the nano-Hertz frequency range by Pulsar Timing Array (PTA) collaborations, including NANOGrav, EPTA, and PPTA, has opene…
A study of dark matter-dark energy interaction under the DESI DR2 data constraint
Amin Aboubrahim, Pran Nath
While CDM provides a good fit to cosmological data, it fails to address many of the outstanding questions in contemporary cosmology. Chief among these are the Hubble tension and…
Cosmology of axion dark energy in supersymmetric models and constraints on high scale parameters
Amin Aboubrahim, Andrew H. Giman, Pran Nath
An analysis is given of interacting dark energy and dark matter where the dark energy is assumed to be an ultralight axionic field with a pseudo-Nambu-Goldstone Boson potential whi…
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.…
Cosmological tensions and as an alternative to CDM
Amin Aboubrahim, Pran Nath
The Standard Model of cosmology, CDM, while enormously successful, is currently unable to account for several cosmological anomalies the most prominent of which are in the measu…
Upper limits on dark energy-dark matter interaction from DESI DR2 in a field-theoretic analysis
Amin Aboubrahim, Pran Nath
One of the important issues both in particle physics and cosmology relates to whether dark energy is a cosmological constant , or is dynamical in nature such as quintessence. In…
Interacting ultralight dark matter and dark energy and fits to cosmological data in a field theory approach
Amin Aboubrahim, Pran Nath
The description of dark matter as a pressure-less fluid and of dark energy as a cosmological constant, both minimally coupled to gravity, constitutes the basis of the concordance $…