The SU(5) potential in desitter space

Allen, Bruce

doi:10.1016/0003-4916(85)90340-9

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The SU(5) potential in desitter space

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Allen, Bruce
Observational Relativity and Cosmology, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

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Citation

Allen, B. (1985). The SU(5) potential in desitter space. Annals of Physics, 161(1), 152-177. doi:10.1016/0003-4916(85)90340-9.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0013-5E0A-A

Abstract

The one-loop effective potential for a minimal SU(5) theory is calculated on a curved DeSitter background spacetime. The stability of its extrema in the following subgroups is investigated: SU(4) × U(1), SU(3) × SU(2) × U(1), SU(3) × U(1) × U(1), SU(2) × SU(2) × U(1) × U(1). A combination of analytic and numerical methods is used to obtain phase diagrams for the model. In the inflationary universe, the curvature effects do not prevent a slide into the SU(4) × U(1) extremum.