Work

Unimodular gravity redux

Year: 2015

Type: article

Abstract: It is well known that the problem of the cosmological constant appears in a new light in unimodular gravity. In particular, the zero-momentum piece of the potential does not automatically produce a corresponding cosmological constant. Here we show that quantum corrections do not renormalize the classical value of this observable.

Source: Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields

DOI: 10.1103/physrevd.92.061502

Authors: E. Álvarez, S. González-Martín, M. Herrero-Valea, C. P. Martín

Institutions: Consejo Superior de Investigaciones Científicas, Instituto de Física Teórica, Universidad Autónoma de Madrid, Universidad Complutense de Madrid

Language: English

Topic: Cosmology and Gravitation Theories

Subfield: Astronomy and Astrophysics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: bronze

Funders: European Commission, Ministerio de Economía y Competitividad, Ministerio de Ciencia e Innovación, Seventh Framework Programme