3 papers
gr-qc2020
Growth of Perturbations using Lambert Equation of State
Manisha Banerjee, Sudipta Das, Abdulla Al Mamon +2
Recently, a novel equation of state (EoS) parameter for dark energy has been introduced which deals with a special mathematical function, known as the Lambert function. In this…
gr-qc2019
Dynamical System Analysis for Steep Potentials
Sudipta Das, Manisha Banerjee, Nandan Roy
In this work we have performed the dynamical system analysis for steep(er) exponential potentials considering different values of the steepness index . We have performed the ana…
gr-qc2018
A new parametrization of dark energy equation of state leading to double exponential potential
Sudipta Das, Abdulla Al Mamon, Manisha Banerjee
We show that a canonical scalar field with a phenomenological form of energy density or equivalently an equation of state parameter can provide the required transition from deceler…