We show that the meromorphic Jacobi form that counts the quarter-BPS states in N= 4 string
theories can be canonically decomposed as a sum of a mock Jacobi form and an Appell …

We compute logarithmic corrections to the entropy of rotating extremal black holes using
quantum entropy function ie Euclidean quantum gravity approach. Our analysis includes five …

A bstract We study 5d supersymmetric black holes which descend from strings of
generic\(\mathcal {N}=\left (1,\kern0. 5em 0\right)\) supergravity in 6d. These strings have an …

We survey recent results on the exact dyon spectrum in a class of supersymmetric string
theories, and discuss how the results can be understood from the macroscopic viewpoint …

The partition function on the three-sphere of ABJM theory and its generalizations has, at
large N, a universal, subleading logarithmic term. Inspired by the success of one-loop …

A bstract We consider the well-known solution of the Heterotic Superstring effective action to
zeroth order in α′ that describes the intersection of a fundamental string with momentum …

For BPS black holes with at least four unbroken supercharges, we describe how the
macroscopic entropy can be used to compute an appropriate index, which can be then …

A bstract We study extremal 5-and 4-dimensional black hole solutions of the Heterotic
Superstring effective action at first order in α′ with, respectively, 3 and 4 charges of arbitrary …

A bstract We count the number of regular supersymmetric solutions in supergravity, called
superstrata, that represent non-linear completion of linear fluctuations around empty AdS 3× …

We study exponentially suppressed contributions to the degeneracies of extremal black
holes. Within Sen's quantum entropy function framework and focusing on extremal black …