404 citations · 1.4k across the 23 of their papers we have counts for
5 papers · 1 filter
Proposal for an experiment to search for Randall-Sundrum type corrections to Newton's law of gravitation
Mofazzal Azam, M. Sami, C. S. Unnikrishnan +1
String theory, as well as the string inspired brane-world models such as the Randall-Sundrum (RS) one, suggest a modification of Newton's law of gravitation at small distance scale…
A Note on the Viability of Gauss-Bonnet Cosmology
R. Chingangbam, M. Sami, P. V. Tretyakov +1
In this paper, we analyze the viability of a vacuum Gauss-Bonnet cosmology by examining the dynamics of the homogeneous and anisotropic background in 4+1 dimensions. The trajectori…
Prospects of inflation in delicate D-brane cosmology
Sudhakar Panda, M. Sami, Shinji Tsujikawa
We study D-brane inflation in a warped conifold background that includes brane-position dependent corrections for the nonperturbative superpotential. Instead of stabilizing the vol…
Dark energy generated from a (super)string effective action with higher order curvature corrections and a dynamical dilaton
E. Elizalde, S. Jhingan, S. Nojiri +3
We investigate the possibility of a dark energy universe emerging from an action with higher-order string loop corrections to Einstein gravity in the presence of a massless dilaton…
UV stable, Lorentz-violating dark energy with transient phantom era
Maxim Libanov, Eleftherios Papantonopoulos, Valery Rubakov +2
Phantom fields with negative kinetic energy are often plagued by the vacuum quantum instability in the ultraviolet region. We present a Lorentz-violating dark energy model free fro…