On Two-Loop Effective Action of 2D Sigma Model

A. V. Ivanov; P. V. Akacevich

On Two-Loop Effective Action of 2D Sigma Model

Not yet reviewed by Pith; the record is open.

Re-run · record.json Download PDF Read on arXiv ↗

This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.

SPECIMEN: schema-true, not a live event

T0 review · schema-true

One-sentence machine reading of the paper's core claim.

pith:XXXXXXXX · record.json · timestamp

arxiv 2304.02374 v1 pith:65DOT6LE submitted 2023-04-05 hep-th math-phmath.MP

P. V. Akacevich , A. V. Ivanov This is my paper · ORCID

classification hep-thmath-phmath.MP

keywords regularizationactioneffectivemodelsigmatwo-loopapplicablecontribution

verification ladder T0 review T1 audit T2 compute T3 formal

0 comments

read the original abstract

In this paper, we study two-loop contribution to the effective action of a two-dimensional sigma model. We derive a new formula, which can be applicable to a regularization of general type. As examples, we obtain known results for dimensional regularization and investigate new types of cutoff one. Also, we discuss non-local contributions and restrictions on the regularization.

Discussion (0). Continue with ORCID to comment.

Forward citations

Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

Three-loop singularity structure for a non-linear sigma model
hep-th 2025-07 conditional novelty 6.0 of 10

The three-loop divergent structure of the two-dimensional non-linear sigma model is computed in a coordinate-space cutoff scheme, including the new countervertices and the squared-logarithm part of the renormalization...

Pith tools