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The Spectrum of Teleparallel Gravity
KTH, Centres, Nordic Institute for Theoretical Physics NORDITA. Laboratory of Theoretical Physics, Institute of Physics, University of Tartu, W. Ostwaldi 1, 50411 Tartu, Estonia ; National Institute of Chemical Physics and Biophysics, Rävala pst. 10, 10143 Tallinn, Estonia ; Helsinki Institute of Physics and Department of Physical Sciences, Helsinki University, P.O. Box 64, FIN-00014 Helsinki, Finland.ORCID iD: 0000-0002-9403-8565
Stockholm Univ, AlbaNova Univ Ctr, Dept Phys, SE-10691 Stockholm, Sweden..
2019 (English)In: UNIVERSE, ISSN 2218-1997, Vol. 5, no 3, article id 80Article in journal (Refereed) Published
Abstract [en]

The observer's frame is the more elementary description of the gravitational field than the metric. The most general covariant, even-parity quadratic form for the frame field in arbitrary dimension generalises the New General Relativity by nine functions of the d'Alembertian operator. The degrees of freedom are clarified by a covariant derivation of the propagator. The consistent and viable models can incorporate an ultra-violet completion of the gravity theory, an additional polarisation of the gravitational wave, and the dynamics of a magnetic scalar potential.

Place, publisher, year, edition, pages
MDPI , 2019. Vol. 5, no 3, article id 80
Keywords [en]
teleparallel theory of gravity, nonlocal theories of gravity
National Category
Astronomy, Astrophysics and Cosmology
Identifiers
URN: urn:nbn:se:kth:diva-251222DOI: 10.3390/universe5030080ISI: 000464055600003Scopus ID: 2-s2.0-85064399933OAI: oai:DiVA.org:kth-251222DiVA, id: diva2:1317913
Note

QC 20190524

Available from: 2019-05-24 Created: 2019-05-24 Last updated: 2019-05-24Bibliographically approved

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Koivisto, Tomi S.

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