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arXiv · 1812.00228

Opers for higher states of quantum KdV models

Davide Masoero·Andrea Raimondo
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Abstract

We study the ODE/IM correspondence for all states of the quantum $\widehat{\mathfrak{g}}$-KdV model, where $\widehat{\mathfrak{g}}$ is the affinization of a simply-laced simple Lie algebra $\mathfrak{g}$. We construct quantum $\widehat{\mathfrak{g}}$-KdV opers as an explicit realization of the class of opers introduced by Feigin and Frenkel, which are defined by fixing the singularity structure at $0$ and $\infty$, and by allowing a finite number of additional singular terms with trivial monodromy. We prove that the generalized monodromy data of the quantum $\widehat{\mathfrak{g}}$-KdV opers satisfy the Bethe Ansatz equations of the quantum $\widehat{\mathfrak{g}}$-KdV model. The trivial monodromy conditions are equivalent to a complete system of algebraic equations for the additional singularities.

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Davide Masoero, Andrea Raimondo. 2018-12-01. Opers for higher states of quantum KdV models. https://doi.org/10.1007/s00220-020-03792-3

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