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arXiv 1006.0939hep-th
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Sine-Gordon模型中可积缺陷对的传输矩阵

A transmission matrix for a fused pair of integrable defects in the sine-Gordon model

E. Corrigan, C. Zambon

摘要:

在量子sine-Gordon模型中,提出了一个描述含可积缺陷的孤子散射的传输矩阵。结果与经典的散射图像一致,并突出了位于分离点的两个缺陷和在同一点融合的两个缺陷之间的差异。此外,分析揭示了如何,对于某些参数的选择,无论是孤子孤子和最轻的呼吸孤子的正弦戈登模型的S-矩阵是嵌入在传输矩阵,支持的解释,其中缺陷可以被视为孤子成分。

英文摘要:

Within the quantum sine-Gordon model a transmission matrix describing the scattering of a soliton with a fused pair of integrable defects is proposed. The result is consistent with the classical picture of scattering and highlights the differences between two defects located at separated points and two defects fused at the same point. Moreover, the analysis reveals how, for certain choices of parameters, both the soliton-soliton and the lightest-breather-soliton S-matrices of the sine-Gordon model are embedded within the transmission matrix, supporting an interpretation in which defects may be regarded as soliton constituents.

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