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arXiv · hep-th/0103255

Stability of Massive Cosmological Gravitons

S. Deser·A. Waldron
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Abstract

We analyze the physics of massive spin 2 fields in (A)dS backgrounds and exhibit that: The theory is stable only for masses m^2 >= 2Λ/3, where the conserved energy associated with the background timelike Killing vector is positive, while the instability for m^2<2Λ/3 is traceable to the helicity 0 energy. The stable, unitary, partially massless theory at m^2=2Λ/3 describes 4 propagating degrees of freedom, corresponding to helicities (+/-2,+/-1) but contains no 0 helicity excitation.

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S. Deser, A. Waldron. 2001-04-24. Stability of Massive Cosmological Gravitons. https://doi.org/10.1016/s0370-2693(01)00523-8

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