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Title: Cascading gravity is ghost free

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.

Authors:
 [1];  [2];  [3]
  1. Departement de Physique Theorique, Universite de Geneve, 24 Quai E. Ansermet, CH-1211 Geneve (Switzerland)
  2. Center for Particle Cosmology, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6395 (United States)
  3. Perimeter Institute for Theoretical Physics, 31 Caroline St. N., Waterloo, ON, N2L 2Y5 (Canada)
Publication Date:
OSTI Identifier:
21408085
Resource Type:
Journal Article
Journal Name:
Physical Review. D, Particles Fields
Additional Journal Information:
Journal Volume: 81; Journal Issue: 12; Other Information: DOI: 10.1103/PhysRevD.81.124027; (c) 2010 The American Physical Society; Journal ID: ISSN 0556-2821
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; BRANES; DECOUPLING; GRAVITATION; MANY-DIMENSIONAL CALCULATIONS; MODIFICATIONS; PERTURBATION THEORY; QUANTUM GRAVITY; SIMULATION; STABILITY; FIELD THEORIES; QUANTUM FIELD THEORY

Citation Formats

Rham, Claudia de, Khoury, Justin, and Tolley, Andrew J. Cascading gravity is ghost free. United States: N. p., 2010. Web. doi:10.1103/PHYSREVD.81.124027.
Rham, Claudia de, Khoury, Justin, & Tolley, Andrew J. Cascading gravity is ghost free. United States. https://doi.org/10.1103/PHYSREVD.81.124027
Rham, Claudia de, Khoury, Justin, and Tolley, Andrew J. 2010. "Cascading gravity is ghost free". United States. https://doi.org/10.1103/PHYSREVD.81.124027.
@article{osti_21408085,
title = {Cascading gravity is ghost free},
author = {Rham, Claudia de and Khoury, Justin and Tolley, Andrew J},
abstractNote = {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.},
doi = {10.1103/PHYSREVD.81.124027},
url = {https://www.osti.gov/biblio/21408085}, journal = {Physical Review. D, Particles Fields},
issn = {0556-2821},
number = 12,
volume = 81,
place = {United States},
year = {Tue Jun 15 00:00:00 EDT 2010},
month = {Tue Jun 15 00:00:00 EDT 2010}
}