The geometric Langlands program can be described in a natural way by compactifying on a
Riemann surface C a twisted version of N= 4 super Yang-Mills theory in four dimensions …

We study the critical points of the black hole scalar potential V BH in N= 2, d= 4 supergravity
coupled to nV vector multiplets, in an asymptotically flat extremal black hole background …

In these lecture notes, we review some recent developments on the relation between the
macroscopic entropy of four-dimensional BPS black holes and the microscopic counting of …

We give a review of the black-hole/qubit correspondence that incorporates not only the
earlier results on black-hole entropy and entanglement measures, seven qubits and the …

Finding the exact, quantum corrected metric on the hypermultiplet moduli space in Type II
string compactifications on Calabi-Yau threefolds is an outstanding open problem. We …

We study asymptotically flat stationary solutions of four-dimensional supergravity theories
via the associated fraktur G/fraktur H* pseudo-Riemannian non-linear sigma models in three …

We consider the geodesic motion on the symmetric moduli spaces that arise after timelike
and spacelike reductions of supergravity theories. The geodesics correspond to timelike …

Dimensional reduction along time offers a powerful way to study stationary solutions of 4D
symmetric supergravity models via group-theoretical methods. We apply this approach …

We derive extremal black hole solutions for a variety of four dimensional models which, after
Kaluza-Klein reduction, admit a description in terms of 3D gravity coupled to a sigma model …

A bstract When formulated in twistor space, the D-instanton corrected hypermultiplet moduli
space in\(\mathcal {N}={2}\) string vacua and the Coulomb branch of rigid\(\mathcal {N}={2}\) …