399 citations · 433 across the 5 of their papers we have counts for
11 papers
Gravitational Collapse in an Expanding Universe: Scaling Relations for Two-Dimensional Collapse Revisited
S. Ray, J. S. Bagla, T. Padmanabhan
We investigate non-linear scaling relations for two-dimensional gravitational collapse in an expanding background using a 2D TreePM code and study the strongly non-linear regime ($…
WMAP constraints on low redshift evolution of dark energy
H. K. Jassal, J. S. Bagla, T. Padmanabhan
The conceptual difficulties associated with a cosmological constant have led to the investigation of alternative models in which the equation of state parameter, , of the da…
Role of Horizons in Semiclassical Gravity: Entropy and the Area Spectrum
T. Padmanabhan, Apoorva Patel
In any space-time, it is possible to have a family of observers who have access to only part of the space-time manifold, because of the existence of a horizon. We demand that \emph…
Gravitational clustering in Static and Expanding Backgrounds
T. Padmanabhan
A brief summary of several topics in the study of gravitational many body problem is given. The discussion covers both static backgrounds (applicable to astrophysical systems) as w…
Semiclassical quantization of gravity I: Entropy of horizons and the area spectrum
T. Padmanabhan, Apoorva Patel
The principle of equivalence provides a description of gravity in terms of the metric tensor and determines how gravity affects the light cone structure of the space-time. This, in…
A novel approach to particle production in an uniform electric field
K. Srinivasan, T. Padmanabhan
We outline a different method of describing scalar field particle production in a uniform electric field. In the standard approach, the (analytically continued) harmonic oscillator…