Phenomenological footprints of Λ varying gravity theories inspired from quantum gravity models in the multi-messenger era
Good M.R.R. Zarikas V.
19 October 2023Institute of Physics
Classical and Quantum Gravity
2023#40Issue 20
An interesting phenomenological consequence of Λ varying gravity theories inspired by quantum gravity models is reported. The treatment in the present work is quite general and applicable to several different actions with Λ varying, especially those used in RG approaches to quantum gravity. An effective gravitational action with a scale varying cosmological constant, Λ, which depends on the system’s characteristics, like the length and the energy density, is the key feature. If the system is an astrophysical object, like a cluster of galaxies, a black hole, etc, non-negligible corrections arise to several observable quantities. Distinctive footprints could refer to luminosity distance and strong/weak lensing measurements, among others. The present study focuses on the SNIa luminosity distance observable.
asymptotic safety , cosmology , multi-messenger era , RG approaches to quantum gravity , supernovae , voids and filaments , Λ varying models
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Department of Physics & Energetic Cosmos Laboratory, Nazarbaev University, Astana, 010000, Kazakhstan
Leung Center for Cosmology and Particle Astrophysics, National Taiwan University, Taipei, 10617, Taiwan
Department of Mathematics, University of Thessaly, Lamia, 35100, Greece
Department of Physics & Energetic Cosmos Laboratory
Leung Center for Cosmology and Particle Astrophysics
Department of Mathematics
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