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

Astrid Eichhorn, Johannes Lumma, Antonio D. Pereira*, Arslan Sikandar

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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.

TidsskriftJournal of High Energy Physics
Udgave nummer2
Antal sider20
StatusUdgivet - 2020

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