Doppelgänger dark energy: modified gravity with non-universal couplings after GW170817
Gravitational Wave (GW) astronomy severely narrowed down the theoretical space for scalar-tensor theories. We propose a new class of attractor models for Horndeski action in which GWs propagate at the speed of light in the nearby universe but not in the past. To do so we derive new solutions to the...
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| Main Authors: | , , |
|---|---|
| Format: | Article (Journal) Chapter/Article |
| Language: | English |
| Published: |
20 Jun 2018
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| In: |
Arxiv
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| Online Access: | Verlag, Volltext: http://arxiv.org/abs/1803.06368
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| Author Notes: | Luca Amendola, Dario Bettoni, Guillem Domènech and Adalto R. Gomes |
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