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Cascading Gravity: Extending the Dvali-Gabadadze-Porrati Model to Higher Dimension
We present a higher codimension generalization of the DGP scenario which, unlike previous attempts, is free of ghost instabilities. The 4D propagator is made regular by embedding our visible 3-brane within a 4-brane, each with their own induced gravity terms, in a flat 6D bulk. The model is ghost-fr...
| Autores principales: | , , , , , , |
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| Lenguaje: | eng |
| Publicado: |
2007
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1103/PhysRevLett.100.251603 http://cds.cern.ch/record/1069227 |