18 citations · 44 across the 7 of their papers we have counts for
7 papers
Reconstructing modified and alternative theories of gravity
Dalia Saha, Manas Chakrabortty, Abhik Kumar Sanyal
A viable radiation dominated era in the early universe is best described by the standard (FLRW) model of cosmology. In this short review, we demonstrate reconstruction of the forms…
A viable form of the metric Teleparallel F(T) theory of gravity
Manas Chakrabortty, Nayem Sk, Abhik Kumar Sanyal
Unlike F(R) gravity, pure metric F(T) gravity in the vacuum dominated era, ends up with an imaginary action and is therefore not feasible. This eerie situation may only be circumve…
The issue of Branched Hamiltonian in F(T) Teleparallel Gravity
Manas Chakrabortty, Kaushik Sarkar, Abhik Kumar Sanyal
As in the case of Lanczos-Lovelock gravity, the main advantage of F(T) gravity is said to be that it leads to second order field equations, while F(R) gravity theory leads to fourt…
Inflation with F(T) Teleparallel Gravity
Manas Chakrabortty, Nayem Sk, Susmita Sanyal +1
We study early universe with a particular form of F(T) Telleparallel gravity theory, in which inflation is driven by a scalar field. To ensure slow rollover, two different potentia…
New conserved tensors and Brans-Dicke type field equation, using integrability condition
Abhik Kumar Sanyal, Bijan Modak, Manas Chakrabortty
We explore some new off-shell and on-shell conserved quantities for a scalar field in Minkowski space, using integrability condition. The off-shell conserved tensors are related to…
Analyzing Conserved Currents in F(R) theory of gravity
Nayem Sk, Manas Chakrabortty, Abhik Kumar Sanyal
F(R) theory of gravity is claimed to admit a host of conserved currents under the imposition of Noether symmetry following various techniques. However, for a constrained system suc…
Some aspects of modified theory of gravity in Palatini formalism unveiled
Manas Chakrabortty, Nayem Sk, Abhik Kumar Sanyal
Under conformal transformation, f(R) theory of gravity in Palatini formalism leads to a Brans-Dicke type of scalar-tensor equivalent theory with a wrong sign in the effective kinet…