Abstract
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 theory's phase space is reduced.
Original language | English |
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Article number | 042 |
Journal | Journal of Cosmology and Astroparticle Physics |
Volume | 2013 |
Issue number | 2 |
DOIs | |
Publication status | Published - Feb 2013 |
Externally published | Yes |
Keywords
- gravity
- modified gravity
- quantum field theory on curved space