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Remnant symmetry, propagation, and evolution in f(T) gravity
KTH, Centres, Nordic Institute for Theoretical Physics NORDITA.
2015 (English)In: Physical Review D, ISSN 1550-7998, Vol. 91, no 6, 064003Article 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, 064003
National Category
Physical Sciences
URN: urn:nbn:se:kth:diva-163980DOI: 10.1103/PhysRevD.91.064003ISI: 000350999100009ScopusID: 2-s2.0-84924366452OAI: diva2:807535

QC 20150423

Available from: 2015-04-23 Created: 2015-04-13 Last updated: 2015-04-23Bibliographically approved

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Ong, Yen Chin
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