Kosterlitz-Thouless Phase Transition In The Two Dimensional Linear Sigma Model

C. Wetterich; M. Gr"ater

Kosterlitz-Thouless Phase Transition In The Two Dimensional Linear 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 hep-ph/9409459 v1 pith:CJBC5XDT submitted 1994-09-30 hep-ph cond-mathep-th

M. Gr"ater , C. Wetterich This is my paper · ORCID

classification hep-phcond-mathep-th

keywords equationkosterlitz-thoulesslinearmodelphasesigmatransitionabsent

verification ladder T0 review T1 audit T2 compute T3 formal

Signed reviews

No signed human review yet.

0 comments

abstract

We investigate the O(N) symmetric linear $\sigma$-model in two dimensions by means of an exact nonperturbative evolution equation. The perturbative infrared divergences are absent in this formulation. We use a simple approximative solution of the flow equation which corresponds to a derivative expansion for the effective action. For N=2 this gives a good picture of the Kosterlitz-Thouless phase transition.

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

Notes from the bulk
hep-th 2025-07 conditional novelty 4.0 of 10

A boundary-QFT analysis shows that curved bulk metrics create local edge velocities in topological models and that fracton and linearized-gravity theories carry Kac-Moody boundary algebras.

Pith tools