English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Using high statistic numerical results we investigate the properties of theO(3) non-linear 2D sigma-model. Our main concern is the detection of anhypothetical Kosterlitz-Thouless-like (KT) phase transition which wouldcontradict the asymptotic freedom scenario. Our results do not support such aKT-like phase transition.Comment: Latex, 7 pgs, 4 eps-figures. Added more analysis on the  KT-transition. 4-loop beta function contains corrections from D.-S.Shin  (hep-lat/9810025). In a note-added we comment on the consequences of these  corrections on our previous reference [16

physical review. d. particles, fields, gravitation, and cosmology/physical review. d. particles and fields

Testing fixed points in the 2D<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>O</mml:mi><mml:mo>(</mml:mo><mml:mn>3</mml:mn><mml:mo>)</mml:mo><mml:mn /></mml:math>nonlinear<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>σ</mml:mi></mml:math>model

Testing fixed points in the 2DO(3)nonlinearσmodel