Diagrammatic Monte Carlo for the weak-coupling expansion of non-Abelian lattice field theories: Large- N U(N)×U(N) principal chiral model

URN to cite this document:: urn:nbn:de:bvb:355-epub-394521
DOI to cite this document:: 10.5283/epub.39452

Buividovich, P. V. ; Davody, A.

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Date of publication of this fulltext: 20 Mar 2019 13:05

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Abstract

We develop numerical tools for diagrammatic Monte Carlo simulations of non-Abelian lattice field theories in the t'Hooft large-N limit based on the weak-coupling expansion. First, we note that the path integral measure of such theories contributes a bare mass term in the effective action which is proportional to the bare coupling constant. This mass term renders the perturbative expansion ...