Polycritical Gravities
classification
✦ hep-th
keywords
criticalgravitiespointsarbitrarybackgroundsdegeneratederivativesdifferent
read the original abstract
We present higher-derivative gravities that propagate an arbitrary number of gravitons of different mass on (A)dS backgrounds. These theories have multiple critical points, at which the masses degenerate and the graviton energies are non-negative. For six derivatives and higher there are critical points with positive energy.
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