English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/163039
COMPARTIR / IMPACTO:
Estadísticas
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:
Título

Imprint of quantum gravity in the dimension and fabric of spacetime

AutorAmelino-Camelia, Giovanni; Calcagni, Gianluca ; Ronco, Michele
Fecha de publicación18-oct-2017
EditorElsevier
CitaciónPhysics Letters B 774: 630-634 (2017)
ResumenWe here conjecture that two much-studied aspects of quantum gravity, dimensional flow and spacetime fuzziness, might be deeply connected. We illustrate the mechanism, providing first evidence in support of our conjecture, by working within the framework of multifractional theories, whose key assumption is an anomalous scaling of the spacetime dimension in the ultraviolet and a slow change of the dimension in the infrared. This sole ingredient is enough to produce a scale-dependent deformation of the integration measure with also a fuzzy spacetime structure. We also compare the multifractional correction to lengths with the types of Planckian uncertainty for distance and time measurements that was reported in studies combining quantum mechanics and general relativity heuristically. This allows us to fix two free parameters of the theory and leads, in one of the scenarios we contemplate, to a value of the ultraviolet dimension which had already found support in other quantum-gravity analyses. We also formalize a picture such that fuzziness originates from a fundamental discrete scale invariance at short scales and corresponds to a stochastic spacetime geometry.
Descripción5 pags., -- Open Access funded by Creative Commons Atribution Licence 4.0
Versión del editorhttps://doi.org/10.1016/j.physletb.2017.10.032
URIhttp://hdl.handle.net/10261/163039
Identificadoresdoi: 10.1016/j.physletb.2017.10.032
issn: 1873-2445
Aparece en las colecciones: (CFMAC-IEM) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
Imprint of quantum gravity.pdf256,87 kBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo
 

Artículos relacionados:


NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.