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Open AccessArticle

The Spectrum of Teleparallel Gravity

by Tomi Koivisto 1,2,3,4,* and Georgios Tsimperis 5
Nordita, KTH Royal Institute of Technology and Stockholm University, Roslagstullsbacken 23, SE-10691 Stockholm, Sweden
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, P.O. Box 64, FIN-00014 Helsinki, Finland and Department of Physical Sciences, Helsinki University, P.O. Box 64, FIN-00014 Helsinki, Finland
Department of Physics, Stockholm University, AlbaNova University Centre, SE-106 91 Stockholm, Sweden
Author to whom correspondence should be addressed.
Universe 2019, 5(3), 80;
Received: 16 January 2019 / Revised: 11 March 2019 / Accepted: 12 March 2019 / Published: 14 March 2019
(This article belongs to the Special Issue Selected Papers from Teleparallel Universes in Salamanca)
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. View Full-Text
Keywords: teleparallel theory of gravity; nonlocal theories of gravity teleparallel theory of gravity; nonlocal theories of gravity
MDPI and ACS Style

Koivisto, T.; Tsimperis, G. The Spectrum of Teleparallel Gravity. Universe 2019, 5, 80.

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