311 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- North Eastern Hill UniversityIN20 papers
- Inter-University Centre for Astronomy and AstrophysicsIN13 papers
- National Institute of Technology MeghalayaIN4 papers
- Centre National de la Recherche ScientifiqueFR3 papers
- Austral University of ChileCL2 papers
- CEA Paris-Saclay - Etablissement de SaclayFR2 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR2 papers
- Durban University of TechnologyZA2 papers
- Institut de Physique ThéoriqueFR2 papers
- National Observatory of AthensGR2 papers
- Universidad Católica del NorteCL2 papers
- Université Paris-SaclayFR2 papers
15 papers · 1 filter
Global phase space analysis for a class of single scalar field bouncing solutions in general relativity
A. S. Agrawal, Saikat Chakraborty, B. Mishra +2
We carry out a compact phase space analysis of a non-canonical scalar field theory whose Lagrangian is of the form within general relativity. In particular, we focus on…
Cosmology in gravity: A unified dynamical system analysis at background and perturbation levels
Wompherdeiki Khyllep, Jibitesh Dutta, Emmanuel N. Saridakis +1
Motivated by the fact that cosmological models based on gravity are very efficient in fitting observational datasets at both background and perturbation levels, we perform a…
Background evolution and growth of structures in interacting dark energy through dynamical system analysis
Wompherdeiki Khyllep, Jibitesh Dutta, Spyros Basilakos +1
We apply the formalism of dynamical system analysis to investigate the evolution of interacting dark energy scenarios at the background and perturbation levels in a unified way. Si…
Interacting quintessence in light of Generalized Uncertainty Principle: Cosmological perturbations and dynamics
Andronikos Paliathanasis, Genly Leon, Wompherdeiki Khyllep +2
We consider a cosmological scenario endowed with an interaction between the universe's dark components dark matter and dark energy. Specifically, we assume the dark matter comp…
Cosmological solutions and growth index of matter perturbations in gravity
Wompherdeiki Khyllep, Andronikos Paliathanasis, Jibitesh Dutta
The present work studies one of Einstein's alternative formulations based on the non-metricity scalar generalized as theory. More specifically, we consider the power-law…
Cosmological dynamics and bifurcation analysis of the general non-minimally coupled scalar field models
Wompherdeiki Khyllep, Jibitesh Dutta
Non-minimally coupled scalar field models are well-known for providing interesting cosmological features. These include a late time dark energy behavior, a phantom dark energy evol…
Thermodynamics of scalar field models with kinetic corrections
Binod Chetry, Jibitesh Dutta, Wompherdeiki Khyllep
In the present work, we compare the thermodynamical viability of two types of non-canonical scalar field models with kinetic corrections: the square kinetic and square root kinetic…
Linear growth index of matter perturbations in Rastall gravity
Wompherdeiki Khyllep, Jibitesh Dutta
Rastall gravity theory shows notable features consistent with physical observations in comparison to the standard Einstein theory. Recently, there has been a debate about the equiv…
Cosmological dynamics of the general non-canonical scalar field models
Jibitesh Dutta, Wompherdeiki Khyllep, Hmar Zonunmawia
We extend the investigation of cosmological dynamics of the general non-canonical scalar field models by dynamical system techniques for a broad class of potentials and coupling fu…
Cosmological dynamics of brane gravity: A global dynamical system perspective
Hmar Zonunmawia, Wompherdeiki Khyllep, Jibitesh Dutta +1
The braneworld model of gravity is well-known for several notable cosmological features such as self-acceleration originating from a geometric and not matter source, effective dark…
Cosmological dynamics of mimetic gravity
Jibitesh Dutta, Wompherdeiki Khyllep, Emmanuel N. Saridakis +2
We present a detailed investigation of the dynamical behavior of mimetic gravity with a general potential for the mimetic scalar field. Performing a phase-space and stability analy…
Dark energy with a gradient coupling to the dark matter fluid: cosmological dynamics and structure formation
Jibitesh Dutta, Wompherdeiki Khyllep, Nicola Tamanini
We consider scalar field models of dark energy interacting with dark matter through a coupling proportional to the contraction of the four-derivative of the scalar field with the f…
Dynamical analysis of interacting dark energy model in the framework of particle creation mechanism
Sujay Kr. Biswas, Wompherdeiki Khyllep, Jibitesh Dutta +1
In this work we present the cosmological dynamics of interacting dark energy models in the framework of particle creation mechanism. The particle creation mechanism presented here…
Late time accelerated scaling attractors in DGP (Dvali-Gabadadze-Porrati) braneworld
Jibitesh Dutta, Wompherdeiki Khyllep, Erickson Syiemlieh
In the evolution of late universe, the main source of matter are Dark energy and Dark matter. They are indirectly detected only through their gravitational manifestations. So the p…
Cosmological dynamics of scalar fields with kinetic corrections: Beyond the exponential potential
Jibitesh Dutta, Wompherdeiki Khyllep, Nicola Tamanini
We expand the dynamical systems investigation of cosmological scalar fields characterised by kinetic corrections presented in [N. Tamanini, Phys. Rev. D 89 (2014) 083521]. In parti…