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arXiv 1310.6985math-phhep-thmath.MPnlin.SI
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量子Gaudin模型与经典KP体系

Quantum Gaudin model and classical KP hierarchy

A. Zabrodin

摘要:

本文综述了量子Gaudin模型和最近在[1]中建立的经典KP体系之间的有趣联系。我们构造了具有扭曲边界条件(主T算子)的量子Gaudin模型的运动积分的母函数,并证明了它满足经典KP族的双线性恒等式和Hirota方程.这意味着主$T$ -算子在谱参数中的本征值的零点具有与粒子的Calogero-Moser质点系相同的动力学。

英文摘要:

This short note is a review of the intriguing connection between the quantum Gaudin model and the classical KP hierarchy recently established in [1]. We construct the generating function of integrals of motion for the quantum Gaudin model with twisted boundary conditions (the master T-operator) and show that it satisfies the bilinear identity and Hirota equations for the classical KP hierarchy. This implies that zeros of eigenvalues of the master $T$-operator in the spectral parameter have the same dynamics as the Calogero-Moser system of particles.

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