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DOE OSTI · 21408085

Cascading gravity is ghost free

Rham, Claudia de·Khoury, Justin·Tolley, Andrew J
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Abstract

We perform a full perturbative stability analysis of the 6D cascading gravity model in the presence of 3-brane tension. We demonstrate that for sufficiently large tension on the (flat) 3-brane, there are no ghosts at the perturbative level, consistent with results that had previously only been obtained in a specific 5D decoupling limit. These results establish the cascading gravity framework as a consistent infrared modification of gravity.

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72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDSBRANESDECOUPLINGFIELD THEORIESGRAVITATIONMANY-DIMENSIONAL CALCULATIONSMODIFICATIONSPERTURBATION THEORYQUANTUM FIELD THEORYQUANTUM GRAVITYSIMULATIONSTABILITY

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Rham, Claudia de, Khoury, Justin, Tolley, Andrew J. 2010-06-15. Cascading gravity is ghost free. https://doi.org/10.1103/physrevd.81.124027

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