Viability criterion for modified gravity with an extra force
Valerio FaraoniPhysics Department, Bishop’s University, Sherbrooke, Québec, Canada J1M 0C8
2007en
ABI
Abstract
A recently proposed theory of modified gravity with an explicit anomalous coupling of the Ricci curvature to matter is discussed, and an inequality is derived which expresses a necessary and sufficient condition to avoid the notorious Dolgov-Kawasaki instability.
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Cited by 30 references