Cascading Gravity: Extending the Dvali-Gabadadze-Porrati Model to Higher Dimension

Journal Article · Fri Jun 27 04:00:00 EDT 2008 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.100.251603· OSTI ID:21134066

Rham, Claudia de ^[1]; Dvali, Gia ^[2]; Hofmann, Stefan ^[1]; Khoury, Justin; Tolley, Andrew J ^[1]; Pujolas, Oriol ^[3]; Redi, Michele ^[3]

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1. Perimeter Institute for Theoretical Physics, 31 Caroline St. N., Waterloo, ON, N2L 2Y5 (Canada)
2. CERN, Theory Division, CH-1211 Geneva 23 (Switzerland)
3. Center for Cosmology and Particle Physics, New York University, New York, New York 10003 (United States)

We present a generalization of the Dvali-Gabadadze-Porrati scenario to higher codimensions 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-free if the tension on the 3-brane is larger than a certain critical value, while the induced metric remains flat. The gravitational force law ''cascades'' from a 6D behavior at the largest distances followed by a 5D and finally a 4D regime at the shortest scales.

• OSTI ID: 21134066
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 25 Vol. 100; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BRANES
FOUR-DIMENSIONAL CALCULATIONS
GRAVITATION
INSTABILITY
MANY-DIMENSIONAL CALCULATIONS
STRING THEORY