Scale and conformal invariance in 2d σ-models, with an application to $$\mathcal{N}$$ = 4 supersymmetry

Abstract By adapting previously known arguments concerning Ricci flow and the c-theorem, we give a direct proof that in a two-dimensional sigma-model with compact target space, scale invariance implies conformal invariance in perturbation theory. This argument, which applies to a general sigma-model...

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Bibliographic Details
Main Authors: Georgios Papadopoulos, Edward Witten
Format: Article
Language:English
Published: SpringerOpen 2025-03-01
Series:Journal of High Energy Physics
Subjects:
Online Access:https://doi.org/10.1007/JHEP03(2025)056
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