RT Journal Article
T1 Quantum corrections to unimodular gravity
A1 Álvarez, Enrique
A1 González Martín, Sergio
A1 Herrero Valea, Mario
A1 Pérez Martín, Carmelo
AB The problem of the comological constant appears in a new light in Unimodular Gravity. In particular, the zero momentum piece of the potential (that is, the constant piece independent of the matter fields) does not automatically produce a cosmological constant proportional to it. The aim of this paper is to give some details on a calculation showing that quantum corrections do not renormalize the classical value of this observable.
PB Springer
SN 1029-8479
YR 2015
FD 2015-08
LK https://hdl.handle.net/20.500.14352/24281
UL https://hdl.handle.net/20.500.14352/24281
LA eng
NO © The Authors. © Springer Verlag.We are grateful for illuminating discussions with Andrei Barvinsky and Christian Steinwachs. This work has been partially supported by the European Union FP7 ITN INVISIBLES (Marie Curie Actions, PITN-GA-2011-289442) and (HPRN-CT-200-00148); COST action MP1405 (Quantum Structure of Spacetime), COST action MP1210 (The String Theory Universe) as well as by FPA2012-31880 (MICINN, Spain)), FPA2011-24568 (MICINN, Spain), and S2009ESP-1473 (CA Madrid). The authors acknowledge the support of the Spanish MINECO Centro de Excelencia Severo Ochoa Programme under grant SEV-2012-0249. The xAct package [28] has been extensively used in the computations of the present paper.
NO Unión Europea. FP7
NO Comunidad de Madrid
NO Marie Curie Action ITN INVISIBLES
NO COST Action Program (UE)
NO Ministerio de Ciencia e Innovación (MICINN), España
NO Programa Centro de Excelencia Severo Ochoa (MINECO)
NO Seventh Framework Programme for Research (FP7), UE
NO Ministerio de Economía y Competitividad (MINECO), España
DS Docta Complutense
RD 29 abr 2025