The origin of the cosmological constant in unimodular gravity

Abstract It is well-known that in unimodular gravity (UG) the cosmological constant is not sourced by a constant energy density, but rather appears as some sort of integration constant. In this work we try to flesh this out by studying in some detail a couple of examples, one from cosmology and the...

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Bibliographic Details
Main Authors: Enrique Álvarez, Jesús Anero, Irene Sánchez-Ruiz
Format: Article
Language:English
Published: SpringerOpen 2024-03-01
Series:European Physical Journal C: Particles and Fields
Online Access:https://doi.org/10.1140/epjc/s10052-024-12651-7