We introduce a notion of topological M-theory and argue that it provides a unification of form theories of gravity in various dimensions. Its classical solutions involve G2 holonomy metrics onâ€¦ (More)

Quasi-conformal actions were introduced in the physics literature as a generalization of the familiar fractional linear action on the upper half plane, to Hermitian symmetric tube domains based onâ€¦ (More)

Motivated by black hole physics in N = 2, D = 4 supergravity, we study the geometry of quaternionic-KÃ¤hler manifolds M obtained by the c-map construction from projective special KÃ¤hler manifolds Ms.â€¦ (More)

Murat Gunaydin, Andrew Neitzke, Boris Pioline, 4 and Andrew Waldron Department of Physics, Penn State University, University Park, PA 16802, USA School of Natural Sciences, Institute for Advancedâ€¦ (More)

Motivated by the interpretation of the Ooguri-Strominger-Vafa conjecture as a holographic correspondence in the mini-superspace approximation, we study the radial quantization of stationary,â€¦ (More)

Extending a computation which appeared recently in [1], we compute the transmission and reflection coefficients for massless uncharged scalars and gravitational waves scattered by d â‰¥ 4 Schwarzschildâ€¦ (More)

We consider BPS states in a large class of d = 4, N = 2 field theories, obtained by reducing six-dimensional (2, 0) superconformal field theories on Riemann surfaces, with defect operators insertedâ€¦ (More)

There is evidence that one can compute tree level super Yang-Mills amplitudes using either connected or completely disconnected curves in twistor space. We argue that the two computations areâ€¦ (More)

Some of the consequences that follow from the C2 condition of Zhu are analysed. In particular it is shown that every conformal field theory satisfying the C2 condition has only finitely many n-pointâ€¦ (More)

We give an introductory review of topological strings and their application to various aspects of superstrings and supersymmetric gauge theories. This review includes developing the necessaryâ€¦ (More)