105 citations · 315 across the 12 of their papers we have counts for
5 papers · 1 filter
Lovelock Gravity at the Crossroads of Palatini and Metric Formulations
Q. Exirifard, M. M. Sheikh-Jabbari
We consider extensions of the Einstein-Hilbert Lagrangian to a general functional of metric and Riemann curvature tensor. A given such Lagrangian describes two different theories d…
Non-Abelian Magnetized Blackholes and Unstable Attractors
A. E. Mosaffa, S. Randjbar-Daemi, M. M. Sheikh-Jabbari
Fluctuations of non-Abelian gauge fields in a background magnetic flux contain tachyonic modes and hence the background is unstable. We extend these results to the cases where the…
Stabilization of Compactification Volume In a Noncommutative Mini-Super-Phase-Space
N. Khosravi, H. R. Sepangi, M. M. Sheikh-Jabbari
We consider a class of generalized FRW type metrics in the context of higher dimensional Einstein gravity in which the extra dimensions are allowed to have different scale factors.…
Branes at Angles and Resolution of Orbifold Singularities
Avijit Mukherjee, Mohammad M. Sheikh-Jabbari
This paper has been withdrawn.
Mixed Branes and M(atrix) Theory on Noncommutative Torus
F. Ardalan, H. Arfaei, M. M. Sheikh-Jabbari
We derive the noncommutative torus compactification of M(atrix) theory directly from the string theory by imposing mixed boundary conditions on the membranes. The relation of vario…