Universal critical behavior in tensor models for four-dimensional quantum gravity

• Verfasst von: Eichhorn, Astrid [VerfasserIn]
• Verfasst von: Lumma, Johannes [VerfasserIn]
• Verfasst von: Duarte Pereira Junior, Antônio [VerfasserIn]
• Verfasst von: Sikandar, Arslan [VerfasserIn]
• Titel: Universal critical behavior in tensor models for four-dimensional quantum gravity
• Verf.angabe: Astrid Eichhorn, Johannes Lumma, Antonio D. Pereira and Arslan Sikandar
• E-Jahr: 2020
• Jahr: February 19, 2020
• Umfang: 20 S.
• Fussnoten: Gesehen am 02.04.2020
• Titel Quelle: Enthalten in: Journal of high energy physics
• Ort Quelle: Berlin : Springer, 1997
• Jahr Quelle: 2020
• Band/Heft Quelle: (2020,2) Artikel-Nummer 110, 20 Seiten
• ISSN Quelle: 1029-8479
• DOI: doi:10.1007/JHEP02(2020)110
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1693841762

Abstract

Four-dimensional random geometries can be generated by statistical models with rank-4 tensors as random variables. These are dual to discrete building blocks of random geometries. We discover a potential candidate for a continuum limit in such a model by employing background-independent coarse-graining techniques where the tensor size serves as a pre-geometric notion of scale. A fixed point candidate which features two relevant directions is found. The possible relevance of this result in view of universal results for quantum gravity and a potential connection to the asymptotic-safety program is discussed.