TsT, $$ \mathrm{T}\overline{\mathrm{T}} $$ and black strings
TsT, $$ \mathrm{T}\overline{\mathrm{T}} $$ and black strings
We study the relationship between TsT transformations, marginal deformations of string theory on AdS3 backgrounds, and irrelevant deformations of 2d CFTs. We show that TsT transformations of NS-NS backgrounds correspond to instantaneous deformations of the worldsheet action by the antisymmetric product of two Noether currents, holographically mirroring the definition of …