The Bekenstein-Hawking area-entropy relation SBH = A/4 is derived for a class of five-dimensional extremal black holes in string theory by counting the degeneracy of BPS soliton bound states.

It is argued that every Calabi-Yau manifold X with a mirror Y admits a family of supersymmetric toroidal 3-cycles. Moreover the moduli space of such cycles together with their flat connections is… (More)

Scalar field theories with appropriate potentials in Minkowski space can have time-dependent classical solutions containing topological defects which correspond to S-branes-i.e. branes all of whose… (More)

1550-7998=20 A simple relationship of the form ZBH jZtopj is conjectured, where ZBH is a supersymmetric partition function for a four-dimensional BPS black hole in a Calabi-Yau compactification of… (More)

Extremal black holes in M-theory compactification on M × S are microscopically represented by fivebranes wrapping P × S, where M is a Calabi-Yau threefold and P is a four-cycle in M . Additional… (More)

A holographic duality is proposed relating quantum gravity on dSD (D-dimensional de Sitter space) to conformal field theory on a single S ((D-1)-sphere), in which bulk de Sitter correlators with… (More)

The duality relating near-horizon microstates of black holes obtained as orbifolds of a subset of AdS3 to the states of a conformal field theory is analyzed in detail. The SL(2, R)L ⊗ SL(2, R)R… (More)

It is conjectured that strongly coupled, spatially noncommutative N = 4 Yang-Mills theory has a dual description as a weakly coupled open string theory in a near critical electric field, and that… (More)

Monica Guica, Thomas Hartman, Wei Song,* and Andrew Strominger Laboratoire de Physique Théorique et Hautes Energies, Université Pierre et Marie Curie-Paris 6; CNRS Boı̂te 126, 4 Pl. Jussieu, 75252… (More)

Open string theories can be decoupled from closed strings and gravity by scaling to the critical electric field. We propose dual descriptions for the strong coupling limit of these NCOS… (More)