Breakdown of supersymmetry in homogeneous cosmologies in N=1 supergravity
Ja'nos Maja'r, Gyula Bene (Institute for Theoretical Physics,, Eo"tvo"s University, Budapest)
TL;DR
This paper formulates conditions for supersymmetric solutions in N=1 supergravity and demonstrates that supersymmetry is spontaneously broken in most homogeneous cosmologies, except Minkowski space.
Contribution
It provides a classical condition for supersymmetric cosmological solutions and proves spontaneous supersymmetry breaking in key cosmological models.
Findings
Supersymmetry is broken in Friedmann-Robertson-Walker cosmologies.
Supersymmetry is broken in Kasner universe.
Minkowski space is an exception where supersymmetry is preserved.
Abstract
A condition of supersymmetric cosmological solutions of simple (N=1) supergravity is formulated in the classical case. As an application we prove that supersymmetry is spontaneously broken in Friedmann-Robertson-Walker type cosmologies as well as in the Kasner universe, except for the Minkowski space.
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Taxonomy
TopicsBlack Holes and Theoretical Physics · Cosmology and Gravitation Theories · Particle physics theoretical and experimental studies