Computing the renormalization group flow of two-dimensional ϕ^{4} theory with tensor networks

We study the renormalization group flow of ϕ^{4} theory in two dimensions. Regularizing space into a fine-grained lattice and discretizing the scalar field in a controlled way, we rewrite the partition function of the theory as a tensor network. Combining local truncations and a standard coarse-grai...

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Bibliographic Details
Main Authors: Clement Delcamp, Antoine Tilloy
Format: Article
Language:English
Published: American Physical Society 2020-08-01
Series:Physical Review Research
Online Access:http://doi.org/10.1103/PhysRevResearch.2.033278