Perturbative superstrata Original Research Article

We study a particular class of D-brane bound states in type IIB string theory (dubbed “superstrata”) that describe microstates of the 5D Strominger–Vafa black hole. By using the microscopic description in terms of open strings we probe these configurations with generic light closed string states and from there we obtain a linearized solution of six-dimensional supergravity preserving four supersymmetries. We then discuss two generalizations of the solution obtained which capture different types of non-linear corrections. By using this construction, we can provide the first explicit example of a superstratum solution which includes the effects of the KK-monopole dipole charge to first order.