Duality covariant type-IIB supersymmetry and nonperturbative consequences
Duality covariant type-IIB supersymmetry and nonperturbative consequences
Type-IIB supersymmetric theories have an SL(2,$Z$) invariance, known as $U$ duality, which controls the nonperturbative behavior of the theory. Under SL(2,$Z$) the supercharges are doublets, implying that the bosonic charges would be singlets or triplets. However, among the bosonic charges there are doublet strings and doublet five-branes which are in …