Double scaling in tensor models with a quartic interaction

In this paper we identify and analyze in detail the subleading contributions in the 1/N expansion of random tensors, in the simple case of a quartically interacting model. The leading order for this 1/N expansion is made of graphs, called melons, which are dual to particular triangulations of the D-...

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Hauptverfasser: Dartois, Stéphane (VerfasserIn) , Gurǎu, Rǎzvan (VerfasserIn) , Rivasseau, Vincent (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: September 17, 2013
In: Journal of high energy physics
Year: 2013, Heft: 3, Pages: 1-33
ISSN:1029-8479
DOI:10.1007/JHEP09(2013)088
Online-Zugang:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1007/JHEP09(2013)088
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Verfasserangaben:Stéphane Dartois, Razvan Gurau and Vincent Rivasseau
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Zusammenfassung:In this paper we identify and analyze in detail the subleading contributions in the 1/N expansion of random tensors, in the simple case of a quartically interacting model. The leading order for this 1/N expansion is made of graphs, called melons, which are dual to particular triangulations of the D-dimensional sphere, closely related to the “stacked” triangulations. For D < 6 the subleading behavior is governed by a larger family of graphs, hereafter called cherry trees, which are also dual to the D-dimensional sphere. They can be resummed explicitly through a double scaling limit. In sharp contrast with random matrix models, this double scaling limit is stable. Apart from its unexpected upper critical dimension 6, it displays a singularity at fixed distance from the origin and is clearly the first step in a richer set of yet to be discovered multi-scaling limits.
Beschreibung:Gesehen am 05.10.2022
Beschreibung:Online Resource
ISSN:1029-8479
DOI:10.1007/JHEP09(2013)088