63 citations · 162 across the 4 of their papers we have counts for
4 papers · 1 filter
Models at a Lifshitz Point
Sumit R. Das, Ganpathy Murthy
We consider models in dimensions around Lifshitz fixed points with dynamical critical exponent , in the large-N expansion. It is shown that these models are asy…
Microstate Dependence of Scattering from the D1-D5 System
Sumit R. Das, Gautam Mandal
We investigate the question of distinguishing between different microstates of the D1-D5 system (with charges Q_1 and Q_5), by scattering with an incoherent beam, composed of a sup…
Gauge Theories with Time Dependent Couplings and their Cosmological Duals
Adel Awad, Sumit R. Das, Suresh Nampuri +2
We consider the N=4 SYM theory in flat 3+1 dimensional spacetime with a time dependent coupling constant which vanishes at , like . In an analogous quantum mecha…
Cosmologies with Null Singularities and their Gauge Theory Duals
Sumit R. Das, Jeremy Michelson, K. Narayan +1
We investigate backgrounds of Type IIB string theory with null singularities and their duals proposed in hep-th/0602107. The dual theory is a deformed N=4 Yang-Mills theory in 3+1…