95 citations · 122 across the 15 of their papers we have counts for
8 papers · 1 filter
On the perturbed Friedmann equations in Newtonian Gauge
Jaume de Haro, Emilio Elizalde, Supriya Pan
Based on the Newtonian mechanics, in this article, we present a heuristic derivation of the Friedmann equations, providing an intuitive foundation for these fundamental relations i…
A note on the gravitational dark matter production
Jaume de Haro, Supriya Pan
Dark matter, one of the fundamental components of the universe, has remained mysterious in modern cosmology and particle physics, and hence, this field is of utmost importance at p…
Gravitational reheating formulas and bounds in oscillating backgrounds
Jaume de Haro, Llibert Aresté Saló, Supriya Pan
In this article we calculate the reheating temperature in the cosmological scenarios where heavy scalar particles are gravitationally produced, due to a conformally coupled interac…
Reheating constraints and the tension in Quintessential Inflation
Jaume de Haro, Supriya Pan
In this work, we focus on two important aspects of modern cosmology: reheating and Hubble constant tension within the framework of a unified model, namely, quintessential inflation…
Interacting phantom dark energy: new accelerating scaling attractors
Sudip Halder, S. D. Odintsov, Supriya Pan +2
We perform a detailed investigation of interacting phantom cosmology, by applying the powerful method of dynamical system analysis. We consider two well-studied interaction forms,…
Gravitational reheating formulas and bounds in oscillating backgrounds II: Constraints on the spectral index and gravitational dark matter production
Jaume de Haro, Supriya Pan
The reheating temperature plays a crucial role in the early universe's evolution, marking the transition from inflation to the radiation-dominated era. It directly impacts the numb…
Coupled phantom cosmological model motivated by the warm inflationary paradigm
Sudip Halder, Supriya Pan, Paulo M. Sá +1
In this article, we investigate a coupled phantom dark-energy cosmological model in which the coupling term between a phantom scalar field with an exponential potential and a press…
Phase space analysis of sign-shifting interacting dark energy models
Sudip Halder, Jaume de Haro, Tapan Saha +1
The theory of non-gravitational interaction between a pressure-less dark matter (DM) and dark energy (DE) is a phenomenologically rich cosmological domain which has received magnif…