Unimodular gravity redux

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 clas...

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Detalles Bibliográficos
Autores: Alvarez Vázquez, Enrique, González-Martín, S., Herrero-Valea, M., Martín, C.P.
Tipo de recurso: artículo
Fecha de publicación:2015
País:España
Institución:Universidad Autónoma de Madrid
Repositorio:Biblos-e Archivo. Repositorio Institucional de la UAM
Idioma:inglés
OAI Identifier:oai:repositorio.uam.es:10486/678155
Acceso en línea:http://hdl.handle.net/10486/678155
https://dx.doi.org/10.1103/PhysRevD.92.061502
Access Level:acceso abierto
Palabra clave:Unimodular gravity
Cosmological constant
Física
Descripción
Sumario: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