A new symmetry of the spatially flat Einstein-Friedmann equations

We report a new symmetry of the Einstein-Friedmann equations for spatially flat Friedmann- Lemaître-Robertson-Walker universes. We discuss its application to barotropic perfect fluids and its use as a solution-generating technique for scalar field universes.

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Bibliographic Details
Published in:arXiv.org 2020-09
Main Authors: Dussault, Steve, Faraoni, Valerio
Format: Article
Language:English
Subjects:
Mathematical analysis
Scalars
Symmetry
Online Access:Get full text
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Description
Summary:We report a new symmetry of the Einstein-Friedmann equations for spatially flat Friedmann- Lemaître-Robertson-Walker universes. We discuss its application to barotropic perfect fluids and its use as a solution-generating technique for scalar field universes.
ISSN:2331-8422
DOI:10.48550/arxiv.2009.03235