Fermionic Basis in Conformal Field Theory: The Free Fermion Point

Fuente: arXiv
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Main Authors: Adler, Sergei, Boos, Hermann
Format: Preprint
Published: 2026
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author Adler, Sergei
Boos, Hermann
author_facet Adler, Sergei
Boos, Hermann
contents In this work, we use the master function approach to describe the CFT limit of the six-vertex model at the free fermion point. Using the ODE/IM correspondence, we obtain an explicit form of the master function. This allows us to compute the asymptotic expansion of the function $ω(λ, μ)$ describing the expectation values of the fermionic basis operators. As a result, we describe the entire Virasoro module of the corresponding CFT, including the integrals of motion as well.
format Preprint
id arxiv_https___arxiv_org_abs_2601_12843
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Fermionic Basis in Conformal Field Theory: The Free Fermion Point
Adler, Sergei
Boos, Hermann
High Energy Physics - Theory
In this work, we use the master function approach to describe the CFT limit of the six-vertex model at the free fermion point. Using the ODE/IM correspondence, we obtain an explicit form of the master function. This allows us to compute the asymptotic expansion of the function $ω(λ, μ)$ describing the expectation values of the fermionic basis operators. As a result, we describe the entire Virasoro module of the corresponding CFT, including the integrals of motion as well.
title Fermionic Basis in Conformal Field Theory: The Free Fermion Point
topic High Energy Physics - Theory
url https://arxiv.org/abs/2601.12843