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math-ph2025
Near-critical Ising, sine-Gordon at the free fermion point, and bosonization
S. C. Park, Tuomas Virtanen, Christian Webb
In this article, we study the continuous correlations of the near-critical Ising model in two dimensions with plus boundary conditions, and prove that doubled correlation functions…
math-ph2025
Operator product expansions of derivative fields in the sine-Gordon model
Alex Karrila, Tuomas Virtanen, Christian Webb
In this article, we initiate the study of operator product expansions (OPEs) for the sine-Gordon model. For simplicity, we focus on the model below the first threshold of collapse…