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The Weak Energy Condition and Singularities in Classical Free N = 1 Supergravity
Author(s) -
Pullin Jorge
Publication year - 1989
Publication title -
annalen der physik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.009
H-Index - 68
eISSN - 1521-3889
pISSN - 0003-3804
DOI - 10.1002/andp.19895010303
Subject(s) - supergravity , physics , gravitational singularity , singularity , gravitino , spacetime , mathematical physics , homogeneous , theoretical physics , classical mechanics , supersymmetry , quantum mechanics , mathematical analysis , statistical physics , mathematics
Abstract With the use of the modification of the weak energy condition for theories with torsion developed by Hehl, we analyse classical free N = 1 supergravity in the hope that spin‐spin contact interactions may avert singularities, as happens in the neutrinic case. We find that this does not happen, since the appearence of singularities is conditioned by the cosmological model of the gravitino field in consideration. We present a very simple singularity free model for a spatially homogeneous Rarita‐Schwinger field in a Robertson‐Walker spacetime.