wovepaper · research, woven together

papers

Publications (2)

hep-th2013

Stabilization of Linear Higher Derivative Gravity with Constraints

Tai-jun Chen, Eugene A. Lim

We show that the instabilities of higher derivative gravity models with quadratic curvature invariant $I^\pm R^{2} + I^^{2} R_{I^¼ I^½} R^{I^¼ I^½}$ can be removed by judicious addition of constraints…

hep-th2013

Higher derivative theories with constraints : Exorcising Ostrogradski's Ghost

Tai-jun Chen, Matteo Fasiello, Eugene A. Lim +1

We prove that the linear instability in a non-degenerate higher derivative theory, the Ostrogradski instability, can only be removed by the addition of constraints if the original…