02 6 v 1 6 O ct 1 99 5 Utrecht THU - 95 / 23 hep - th / 9510026 INTRODUCTION TO BLACK HOLE MICROSCOPY THEODORE

v 1 1 0 O ct 1 99 6 hep - th / 9610074 CERN - TH / 96 - 277 USC - 96 / HEP - B 6 BLACK HOLE ENTROPY REVEALS A 12 th DIMENSION 1

The Beckenstein-Hawking black hole entropy in string theory and its generalizations , as expressed in terms of charges that correspond to central extensions of the supersymmetry algebra, has more symmetries than U-duality. It is invariant under transformations of the charges, involving a 12th (or 13th) " dimension ". This is an indication that the secret theory behind string theory has a supera...

Einstein-Skyrme Solitons and Black Holes

In the SU(3) Einstein-Skyrme system static spherically symmetric particlelike solutions and black holes exist for both the SU(2) and the SO(3) embedding. The SO(3) embedding leads to new particle-like solutions and black holes, sharing many features with the SU(2) solutions. In particular, there are always two branches of solutions, forming a cusp at a critical coupling constant. The regular SO...

ar X iv : h ep - t h / 95 10 13 4 v 1 1 8 O ct 1 99 5 PUPT - 1565 hep - th / 9510134 Extremal Black Holes As Fundamental Strings

We show that polarization dependent string-string scattering provides new evidence for the identification of the Dabholkar-Harvey (DH) string solution with the heterotic string itself. First, we construct excited versions of the DH solution which carry arbitrary leftmoving waves yet are annihilated by half the supersymmetries. These solutions correspond in a natural way to Bogomolny-bound-satur...

v 2 2 6 O ct 1 99 8 hep - th / 9809133 TAUP - 2518 - 98 Precision “ Measurements ” of the QQ̄ Potential in MQCD

ar X iv : h ep - t h / 95 10 12 3 v 1 1 8 O ct 1 99 5 INJE – TP – 95 – 3 An infinite number of potentials surrounding 2 d black hole

We found an infinite number of potentials surrounding 2d black hole. According to the transmission T and reflection R coefficients for scattering of string fields off 2d black hole, we can classify an infinite number of potentials into three : graviton-dilaton, tachyon and the other types. We suggest that the discrete states from all the Virasoro levels be candidates for new potentials (modes).