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Remnant symmetry, propagation, and evolution in f(T) gravity
Stockholm University, Nordic Institute for Theoretical Physics (Nordita).
2015 (English)In: Physical Review D, ISSN 1550-7998, E-ISSN 1550-2368, Vol. 91, no 6, 64003Article in journal (Refereed) Published
Abstract [en]

It was recently argued that f(T) gravity could inherit remnant symmetry from the full Lorentz group, despite the fact that the theory is not locally Lorentz invariant. Confusion has arisen regarding the implication of this result for the previous works, which established that f(T) gravity is pathological due to superluminal propagation, local acausality, and nonunique time evolution. We clarify that the existence of the remnant group does not rid the theory of these various problems but, instead, strongly supports it.

Place, publisher, year, edition, pages
2015. Vol. 91, no 6, 64003
National Category
Astronomy, Astrophysics and Cosmology
Identifiers
URN: urn:nbn:se:su:diva-116633DOI: 10.1103/PhysRevD.91.064003ISI: 000350999100009OAI: oai:DiVA.org:su-116633DiVA: diva2:807601
Note

AuthorCount:4;

Available from: 2015-04-24 Created: 2015-04-22 Last updated: 2017-12-04Bibliographically approved

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