39 citations · 51 across the 10 of their papers we have counts for
4 papers · 1 filter
Stability Analysis of Axion Dark Energy Model
Ankan Mukherjee, Nandan Roy
We investigate the stability of an axion dark energy model characterized by a periodic scalar-field potential motivated by pseudo Nambu Goldstone bosons. While such models are well…
Chiellini-Integrable Cosmologies with Phantom Divide Crossing
Soumya Chakrabarti, Nandan Roy
We investigate exact cosmological solutions with a massive scalar field minimally coupled to the Einstein-Hilbert action in General Relativity. For an extended Higgs-like scalar se…
Quintessence scalar field and cosmological constant: Dynamics of a multi-component dark energy model
Prasanta Sahoo, Nandan Roy, Himadri Shekhar Mondal
This study explores the dynamics and phase-space behavior of a multi-component dark energy model, where the dark sector consists of a minimally coupled canonical scalar field and t…
-- interacting scalar tensor dark energy
Masroor C. Pookkillath, Nandan Roy
We study the effect of adding an interaction in the term of Horndeski theory, where the propagation of gravitational waves are not modified. We derive the background and pert…