Unimodular Approaches to the Cosmological Constant Problem
We review selected aspects of unimodular gravity and we discuss its viability as a solution of the old cosmological constant problem. In unimodular gravity, the cosmological constant is promoted to a global degree of freedom. We highlight the importance of correctly setting up its initial data in or...
Main Author: | |
---|---|
Format: | Article |
Language: | English |
Published: |
MDPI AG
2023-03-01
|
Series: | Universe |
Subjects: | |
Online Access: | https://www.mdpi.com/2218-1997/9/3/131 |