Football Shaped Extra Dimensions and the Absence of Self-Tuning

2004/06/28 by Jaume Garriga, Massimo Porrati · 13 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Galaxies: Formation, Evolution, Phenomena #astro-ph #gr-qc #hep-ph #hep-th

paper · pdf · doi:10.1088/1126-6708/2004/08/028

published as JHEP0408:028,2004 · Minor comments and a reference added

arxiv created 2004/06/28 · openalex publication_date 2004/08/17 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

There have been some recent claims that brane-worlds of co-dimension two in a 6D bulk with compact extra dimensions may lead to self-tuning of the effective 4D cosmological constant. Here we show that if a phase transition occurs on a flat brane, so as to change its tension, then the brane will not remain flat. In other words, there is really no self-tuning in such models, which can in fact be understood in four-dimensional terms and are therefore subject to Weinberg's no-go theorem.

Citations

• Non-Local Modification of Gravity and the Cosmological Constant Problem
• Sidestepping the Cosmological Constant with Football-Shaped Extra Dimensions

Cited by

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• On the four-dimensional effective theories in brane-worlds
• Modified Friedmann equation and inflation in a warped codimension-two braneworld
• Flux vacua in DBI type Einstein–Maxwell theory
• Low energy effective theory on a regularized brane in 6D gauged chiral supergravity
• On braneworld cosmologies from six dimensions, and absence thereof
• Warped flux compactification and brane gravity
• Casimir energies for 6D supergravities compactified on Script T2/ZNwith Wilson lines
• Effective field theories and matching for codimension-2 branes