Form factors in the massless coset models su(2)k+1 ⊗ su(2)k/su(2)2k+1: Part II

Paolo Grinza; Bénédicte Ponsot

doi:10.1016/j.nuclphysb.2005.04.018

Form factors in the massless coset models su(2)_k+1 ⊗ su(2)_k/su(2)_2k+1: Part II

Paolo Grinza^*, Bénédicte Ponsot

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

Massless flows from the coset model su(2)_k+1 ⊗ su(2)_k/su(2)_2k+1 the minimal model M_k+2 are studied from the viewpoint of form factors. These flows include in particular the flow from the tricritical Ising model to the Ising model. By analogy with the magnetization operator in the flow TIM → IM, we construct all form factors of an operator that flows to Φ_1,2 in the IR. We make a numerical estimation of the difference of conformal weights between the UV and the IR thanks to the Δ-sum rule; the results are consistent with the conformal weight of the operator Φ_2,2 in the UV. By analogy with the energy operator in the flow TIM → IM, we construct all form factors of an operator that flows to Φ_2,1. We propose to identify the operator in the UV with σ₁Φ_1,2.

Original language	English
Pages (from-to)	394-412
Number of pages	19
Journal	Nuclear Physics B
Volume	718
Issue number	3
DOIs	https://doi.org/10.1016/j.nuclphysb.2005.04.018
Publication status	Published - 11 Jul 2005

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Form factors in the massless coset models su(2)_k+1 ⊗ su(2)_k/su(2)_2k+1: Part II

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