A Spin-2 Conjecture on the Swampland

Klaewer, Daniel; Lust, Dieter; Palti, Eran

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A Spin-2 Conjecture on the Swampland

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Klaewer, Daniel
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Lust, Dieter
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Palti, Eran
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

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Citation

Klaewer, D., Lust, D., & Palti, E. (2019). A Spin-2 Conjecture on the Swampland. Fortschritte der Physik/Progress of Physics, 67, 1800102. Retrieved from https://publications.mppmu.mpg.de/?action=search&mpi=MPP-2018-276.

Cite as: https://hdl.handle.net/21.11116/0000-0005-D6F9-1

Abstract

We consider effective theories with massive fields that have spins larger than or equal to two. We conjecture a universal cutoff scale on any such theory that depends on the lightest mass of such fields. This cutoff corresponds to the mass scale of an infinite tower of states, signalling the breakdown of the effective theory. The cutoff can be understood as the Weak Gravity Conjecture applied to the Stückelberg gauge field in the mass term of the high spin fields. A strong version of our conjecture applies even if the graviton itself is massive, so to massive gravity. We provide further evidence for the conjecture from string theory.