Premium
Supersymmetry and cosmic censorship
Author(s) -
Ortín T.
Publication year - 2007
Publication title -
fortschritte der physik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.469
H-Index - 71
eISSN - 1521-3978
pISSN - 0015-8208
DOI - 10.1002/prop.200610361
Subject(s) - supergravity , physics , supersymmetry , cosmic censorship hypothesis , naked singularity , scalar (mathematics) , angular momentum , gravitational singularity , theoretical physics , particle physics , mathematical physics , quantum mechanics , mathematics , geometry
We show that requiring unbroken supersymmetry everywhere in black‐hole‐type solutions of N = 2, d = 4 supergravity coupled to vector supermultiplets ensures in most cases absence of naked singularities. We show that the requirement of global supersymmetry implies the absence of sources for NUT charge, angular momentum, scalar hair and negative energy, for which there is no microscopic interpretation in String Theory. These conditions exclude, for instance, singular solutions such as the Kerr‐Newman with M = |q|, which fails to be everywhere supersymmetric. There are, nevertheless, everywhere supersymmetric solutions with global angular momentum and non‐trivial scalar fields. We also present similar preliminary results in N = 1, d = 5 supergravity coupled to vector multiplets.