Ghost problem, spectrum identities and various constraints on brane-localized gravity
Abstract This paper investigates the brane-localized interactions, including DGP gravity and higher derivative (HD) gravity localized on the brane. We derive the effective action on the brane, which suggests the brane-localized HD gravity suffers the ghost problem generally. Besides, we obtain novel...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2024-06-01
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| Series: | Journal of High Energy Physics |
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| Online Access: | https://doi.org/10.1007/JHEP06(2024)043 |