Higher derivative theories with constraints : Exorcising Ostrogradski's Ghost
High Energy Physics - Theory
2013-06-04 v4 Cosmology and Nongalactic Astrophysics
General Relativity and Quantum Cosmology
Mathematical Physics
math.MP
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.
Keywords
Cite
@article{arxiv.1209.0583,
title = {Higher derivative theories with constraints : Exorcising Ostrogradski's Ghost},
author = {Tai-jun Chen and Matteo Fasiello and Eugene A. Lim and Andrew J. Tolley},
journal= {arXiv preprint arXiv:1209.0583},
year = {2013}
}
Comments
17 pages, no figures, version published in JCAP