2011/07/04 by Damien P. George, Kristian L. McDonald · 2 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Brane #Classical mechanics #Computer science #Cosmology and Gravitation Theories #Coupling (piping) #Einstein #Extra dimensions #Hilbert space #Metric (unit) #Noncommutative and Quantum Gravity Theories #Physics #Quantum #Quantum gravity #Quantum mechanics #Randall–Sundrum model #Space (punctuation) #String (physics) #String theory #Theoretical physics #gr-qc #hep-ph #hep-th
paper · pdf · doi:10.1103/physrevd.84.064007
published as Phys.Rev.D84:064007,2011 · 1+24 pages
arxiv created 2011/07/04 · openalex publication_date 2011/09/06 · arxiv updated 2011/11/15 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We investigate the consistent inclusion of 4D Einstein gravity on a truncated slice of AdS5 whose bulk-gravity and UV scales are much less than the 4D Planck scale, M*\ensuremath≪MPl. Such ``Little Warped Spaces'' have found phenomenological utility and can be motivated by string realizations of the Randall-Sundrum framework. Using the interval approach to brane-world gravity, we show that the inclusion of a large UV-localized Einstein-Hilbert term allows one to consistently incorporate 4D Einstein gravity into the low-energy theory. We detail the spectrum of Kaluza-Klein metric fluctuations and, in particular, examine the coupling of the little radion to matter. Furthermore, we show that Goldberger-Wise stabilization can be successfully implemented on such spaces. Our results demonstrate that realistic low-energy effective theories can be constructed on these spaces, and have relevance for existing models in the literature.