منابع مشابه
Nonextremal black holes are BPS
Extremal charged black holes are BPS solutions. It is commonly thought that their nonextremal counterparts are not. Further, experience with BPS solutions in flat spacetime suggests that all BPS solutions are supersymmetric; i.e. that they are invariant under some supersymmetry charges of either the original field theory or an appropriately extended version thereof. Using nonextremal Reissner-N...
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Classical black holes are solutions of Einstein’s equations of general relativity that exhibit an event horizon. From inside this horizon, nothing (and in particular, no light) can escape. The region inside the horizon is therefore not in the backward lightcone of future timelike infinity. However, since the discovery of Hawking radiation [1], it has become clear that many of the classical feat...
متن کاملFrom BPS to Non-BPS Black Holes Canonically
We describe the “action-angle” integrable system underlying the structure of double-extremal black holes. This implies the existence of a canonical transformation from BPS to non-BPS black holes. We give examples of such canonical transformation for STU and for E7(7)-invariant black holes. ∗ Email: [email protected]
متن کاملRegular Black Holes and Black Universes
We give a comparative description of different types of regular static, spherically symmetric black holes (BHs) and discuss in more detail their particular type, which we suggest to call black universes. The latter have a Schwarzschild-like causal structure, but inside the horizon there is an expanding Kantowski-Sachs universe and a de Sitter infinity instead of a singularity. Thus a hypothetic...
متن کاملExact Attractive Non-BPS STU Black Holes
We develop some properties of the non-BPS attractive STU black hole. Our principle result is the construction of exact solutions for the moduli, the metric and the vectors in terms of appropriate harmonic functions. In addition, we find a spherically-symmetric attractor carrying p0 (D6 brane) and qa (D2 brane) charges by solving the non-BPS attractor equation (which we present in a particularly...
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ژورنال
عنوان ژورنال: International Journal of Modern Physics A
سال: 2000
ISSN: 0217-751X,1793-656X
DOI: 10.1142/s0217751x0000207x