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More on effective composite metrics
KTH, Centres, Nordic Institute for Theoretical Physics NORDITA. Stockholm University, Sweden..
2015 (English)In: Physical Review D, ISSN 1550-7998, E-ISSN 1550-2368, Vol. 92, no 2, 023525Article in journal (Refereed) Published
Abstract [en]

In this work we study different classes of effective composite metrics proposed in the context of one-loop quantum corrections in bimetric gravity. For this purpose we consider contributions of the matter loops in the form of cosmological constants and potential terms yielding two types of effective composite metrics. This guarantees a nice behavior at the quantum level. However, the theoretical consistency at the classical level needs to be ensured additionally. It turns out that among all these possible couplings, only one unique effective metric survives these criteria at the classical level.

Place, publisher, year, edition, pages
2015. Vol. 92, no 2, 023525
National Category
Astronomy, Astrophysics and Cosmology
Identifiers
URN: urn:nbn:se:kth:diva-172719DOI: 10.1103/PhysRevD.92.023525ISI: 000358257500007Scopus ID: 2-s2.0-84939187127OAI: oai:DiVA.org:kth-172719DiVA: diva2:849463
Note

QC 20150828

Available from: 2015-08-28 Created: 2015-08-27 Last updated: 2017-12-04Bibliographically approved

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