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hep-th2025
Exotic Branes and Symmetries of String Theory
Ashoke Sen
Are duality transformations symmetries of string theory? For AdS space-time the answer is no for generic asymptotic values of the moduli, since the duality symmetry is broken expli…
hep-th2025
Scattering of D0-branes and Strings
Ashoke Sen, Bogdan Stefański
It has been known for about thirty years that a scattering amplitude involving D0-branes and closed strings suffers from infrared divergences beyond tree level. These divergences a…