Roaming form factors for the tricritical to critical Ising flow

Horváth, D.; Dorey, P.; Takács, G.

Abstract

We study the massless flows described by the staircase model introduced by Al.B. Zamolodchikov through the analytic continuation of the sinh-Gordon S-matrix, focusing on the renormalisation group flow from the tricritical to the critical Ising model. We show that the properly defined roaming limits of certain sinh-Gordon form factors are identical to the form factors of the order and disorder operators for the massless flow. As a by-product, we also construct form factors for a semi-local field in the sinh-Gordon model, which can be associated with the twist field in the ultraviolet limiting free massless bosonic theory.

Citation

Horváth, D., Dorey, P., & Takács, G. (2016). Roaming form factors for the tricritical to critical Ising flow. Journal of High Energy Physics, 2016(7), Article 051. https://doi.org/10.1007/jhep07%282016%29051

• Journal Article Type: Article
• Acceptance Date: Jul 3, 2016
• Online Publication Date: Jul 11, 2016
• Publication Date: Jul 11, 2016
• Deposit Date: Mar 29, 2017
• Publicly Available Date: Mar 30, 2017
• Journal: Journal of High Energy Physics
• Print ISSN: 1126-6708
• Publisher: Scuola Internazionale Superiore di Studi Avanzati (SISSA)
• Peer Reviewed: Peer Reviewed
• Volume: 2016
• Issue: 7
• Article Number: 051
• DOI: https://doi.org/10.1007/jhep07%282016%29051
• Related Public URLs: https://arxiv.org/pdf/1604.05635.pdf