Time-dependent G in Einstein’s equations as an alternative to the cosmological constant

In this work, we investigate cosmologies where the gravitational constant varies in time, with the aim of explaining the accelerated expansion without a cosmological constant. We achieve this by considering a phenomenological extension to general relativity, modifying Einstein's field equations...

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Veröffentlicht in:	Physical review. D 2020-03, Vol.101 (6), p.1, Article 063513
Hauptverfasser:	Hanımeli, Ekim Taylan, Lamine, Brahim, Blanchard, Alain, Tutusaus, Isaac
Format:	Artikel
Sprache:	eng
Schlagworte:	Astrophysics Cosmological constant Einstein equations Energy conservation General Relativity and Quantum Cosmology Gravitation Gravitational constant Mathematical analysis Physics Red shift Relativity Supernovae Tensors Time dependence
Online-Zugang:	Volltext
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