An effective Lagrangian approach based on an extended Einstein-Aether (EA) model is presented and formulated in a generic non flat Fridman-Lemaitre-Robertson-Walker (FLRW) space-time. For a flat FLRW space-time, a Friedmann equation similar to the one obtained in Quantum Loop Cosmology (QLC) is reproduced, with related non singular bounce solution. Finally, the Static Spherically Symmetric (SSS) solutions are investigated.

A note on non singular Einstein-Aether cosmologies / Casalino, Alessandro; Sebastiani, Lorenzo; Zerbini, Sergio. - In: PHYSICAL REVIEW D. - ISSN 2470-0010. - 101:10(2020), pp. 104059.1-104059.10. [10.1103/PhysRevD.101.104059]

A note on non singular Einstein-Aether cosmologies

Casalino, Alessandro;Sebastiani, Lorenzo;Zerbini, Sergio
2020-01-01

Abstract

An effective Lagrangian approach based on an extended Einstein-Aether (EA) model is presented and formulated in a generic non flat Fridman-Lemaitre-Robertson-Walker (FLRW) space-time. For a flat FLRW space-time, a Friedmann equation similar to the one obtained in Quantum Loop Cosmology (QLC) is reproduced, with related non singular bounce solution. Finally, the Static Spherically Symmetric (SSS) solutions are investigated.
2020
10
Casalino, Alessandro; Sebastiani, Lorenzo; Zerbini, Sergio
A note on non singular Einstein-Aether cosmologies / Casalino, Alessandro; Sebastiani, Lorenzo; Zerbini, Sergio. - In: PHYSICAL REVIEW D. - ISSN 2470-0010. - 101:10(2020), pp. 104059.1-104059.10. [10.1103/PhysRevD.101.104059]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11572/266073
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