Conveners
Dark Energy-I
- Anjan Ananda Sen
Mrs
Kabita deka
(Ph.D. student)
29/01/2015, 14:00
Contributory Talks
f(r) gravity model is a part of modified gravity models proposed to explain the present accelerated expansion of the universe. A scalar degree of freedom can be defined from any f(r) gravity model by redefining the model's variable. We have studied the evolution of cosmological parameters using the scalar degree of freedom of the Starobinsky f(r) gravity model in the Einstein frame. It is...
Dr
Sudipta Das
(Visva-Bharati)
29/01/2015, 14:15
Contributory Talks
In this work we have studied the dynamics of accelerating scenario within the framework of scalar field models possessing a non-canonical kinetic term. In this toy model, the scalar field is allowed to interact with the dark matter component through a source term. We have assumed a specific form for the coupling term and then have studied the dynamics of the scalar field having a constant...
Ms
Avani Patel
(IISER Bhopal)
29/01/2015, 14:30
Contributory Talks
In this Poster/talk, I will be discussing the problem of Curvature Singularity which arises
in f(R) theories. The f(R) Theory is a modification of gravitational theory compared to
Einstein’s General Relativity. In these theories, we try to modify gravitational lagrangian
by adding higher order curvature corrections without spoiling successes of GR.
Even though f (R) modifications of late...
Mr
Kumar Priyabrat Pandey
(University of Delhi, Delhi-110007)
29/01/2015, 14:45
Contributory Talks
We out-line a plausible scenario leading to a vacuum created pair of D3-brane/anti-brane by a two form in a U(1) gauge theory on a D4-brane world-volume. In particular, we consider the gauge theory on a D4-brane in presence of a background (open string) black hole metric and obtained an effective torsion curvature description in a second order formalism. The scenario is explored to address...
