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26 April 2024 |
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Article overview
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Coincident General Relativity | | Jose Beltran Jimenez
; Lavinia Heisenberg
; Tomi Koivisto
; | | Date: |
6 Oct 2017 | | Abstract: | The Palatini’s device is applied to generate teleparallel and symmetric
teleparallel theories of gravity. From the latter is discovered an exceptional
class which is consistent with a vanishing affine connection. Based on this
remarkable property, this Letter proposes a simpler geometrical formulation of
General Relativity that is oblivious to the affine spacetime structure, thus
fundamentally depriving gravity from any inertial character. The resulting
theory is described by the Einstein-Hilbert action purged from the boundary
term and is more robustly underpinned by the spin-2 field theory. This
construction also provides a novel starting point for modified gravity
theories, and the Letter presents new and simple generalisations where
analytical self-accelerating cosmological solutions arise naturally in the
early and late time universe. | | Source: | arXiv, 1710.3116 | | Services: | Forum | Review | PDF | Favorites | |
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