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arXiv · 1410.5553

New massive spin two model on curved space-time

Satoshi Akagi·Yuichi Ohara·Shin'ichi Nojiri
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Abstract

We have proposed a new ghost-free model with interactions of massive spin two particles in Phys.\ Rev.\ D {\bf 90} (2014) 043006 [arXiv:1402.5737 [hep-th]]. Although the model is ghost-free on the Minkowski space-time, it is not obvious whether or not this desirable property is preserved on curved space-time. In fact, Buchbinder et al. already pointed out that the Fierz-Pauli theory is not ghost-free on curved space-time without non-minimal coupling terms. In this paper, we construct a new theory of massive spin two particles with non-minimal coupling on curved space-time and show that the model can be ghost-free. Furthermore, we propose new non-minimal coupling terms.

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Satoshi Akagi, Yuichi Ohara, Shin'ichi Nojiri. 2014-12-11. New massive spin two model on curved space-time. https://doi.org/10.1103/physrevd.90.123013

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