2020/12/31 by Shing Yan Li
Physics and Astronomy · #Black Holes and Theoretical Physics #Brane #Brane cosmology #Class (philosophy) #Codimension #Cosmology and Gravitation Theories #Extra dimensions #Gravitation #Large extra dimension #Massless particle #Noncommutative and Quantum Gravity Theories #Observable #gr-qc #hep-th
paper · pdf · doi:10.1007/jhep03(2021)063
published as JHEP 03 (2021) 063 · 23 pages, published version in JHEP
openalex created_date 2020/12/21 · openalex publication_date 2021/03/01 · arxiv created 2021/03/08 · arxiv updated 2021/03/09 · openalex updated_date 2026/08/05
A bstract We study the brane world scenario of a single brane (or a single stack of branes) with codimension higher than one. When the extra dimensions are not small, localization of gravity around the brane is needed in order to reproduce the observable four-dimensional gravity. We focus on the case of noncompact extra dimensions, where the possibility of localized gravity becomes non-trivial. We show that in large class of gravity models, localization of massless gravity is not possible for codimension-2 branes with at least one noncompact extra dimension. With additional mild assumptions on field backgrounds, we also show that it is not possible for higher codimensional branes with two or more noncompact extra dimensions.