Massless Black Holes as Black Diholes and Quadruholes

Abstract

Massless black holes can be understood as bound states of a (positive mass) extreme a=\sqrt{3} black hole and a singular object with opposite (i.e. negative) mass with vanishing ADM (total) mass but non-vanishing gravitational field. Supersymmetric balance of forces is crucial for the existence of this kind of bound states and explains why the system does not move at the speed of light. We also explain how supersymmetry allows for negative mass as long as it is never isolated but in bound states of total non-negative mass.

Version to be published in Physical Review Letters. Latex2e file

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• Massless black hole pairs in string theory
• Classical and Quantum Analysis of Repulsive Singularities in Four Dimensional Extended Supergravity
• Massless Charged Particles Tunneling Radiation from a RN-dS Horizon and the Linear and Quadratic GUP
• Yang-Mills Inspired Solutions for General Relativity
• Transformation of Black-Hole Hair under Duality and Supersymmetry
• Quantum Probes of Repulsive Singularities in N = 2 Supergravity
• Massive and Massless Black Holes
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