269 citations · 2.3k across the 34 of their papers we have counts for
10 papers · 1 filter
S-duality Action on Discrete T-duality Invariants
Shamik Banerjee, Ashoke Sen
In heterotic string theory compactified on T^6, the T-duality orbits of dyons of charge (Q,P) are characterized by O(6,22;R) invariants Q^2, P^2 and Q.P together with a set of inva…
Duality Orbits, Dyon Spectrum and Gauge Theory Limit of Heterotic String Theory on T^6
Shamik Banerjee, Ashoke Sen
For heterotic string theory compactified on T^6, we derive the complete set of T-duality invariants which characterize a pair of charge vectors (Q,P) labelling the electric and mag…
Consistent Truncation to Three Dimensional (Super-)gravity
Rajesh Kumar Gupta, Ashoke Sen
For a general three dimensional theory of (super-)gravity coupled to arbitrary matter fields with arbitrary set of higher derivative terms in the effective action, we give an algor…
Three String Junction and N=4 Dyon Spectrum
Ashoke Sen
The exact spectrum of dyons in a class of N=4 supersymmetric string theories gives us information about dyon spectrum in N=4 supersymmetric gauge theories. This in turn can be tran…
Rare Decay Modes of Quarter BPS Dyons
Ashoke Sen
The degeneracy of quarter BPS dyons in N=4 supersymmetric string theories is known to jump across walls of marginal stability on which a quarter BPS dyon can decay into a pair of h…
AdS_3, Black Holes and Higher Derivative Corrections
Justin R. David, Bindusar Sahoo, Ashoke Sen
Using AdS/CFT correspondence and the Euclidean action formalism for black hole entropy Kraus and Larsen have argued that the entropy of a BTZ black hole in three dimensional superg…