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arXiv 1105.1052math-phhep-thmath.MPnlin.SI
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非线性薛定谔模型中共轭场的形状因子

On Form Factors of the conjugated field in the non-linear Schröodinger model

K. K. Kozlowski

摘要:

Izergin-Korepin对非线性薛定谔模型的格点离散化以及Oota的逆问题为格点离散化的共轭场算符的形状因子提供了行列式表示。我们证明了这些形状因子在零格点间距极限下收敛于连续模型中共轭场算符的形状因子。我们还计算了这种形状因子在连续模型中的大体积渐近行为。这些特别是其特点是弗雷德霍姆决定因素的运营商采取行动的封闭轮廓。我们提供了一种方法来定义这些Fredholm决定因素的情况下,通用参数。

英文摘要:

Izergin-Korepin's lattice discretization of the non-linear Schrödinger model along with Oota's inverse problem provides one with determinant representations for the form factors of the lattice discretized conjugated field operator. We prove that these form factors converge, in the zero lattice spacing limit, to those of the conjugated field operator in the continuous model. We also compute the large-volume asymptotic behavior of such form factors in the continuous model. These are in particular characterized by Fredholm determinants of operators acting on closed contours. We provide a way of defining these Fredholm determinants in the case of generic parameters.

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