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arXiv 0909.3268hep-th
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缺陷Sine-Gordon理论的半经典分析

Semiclassical analysis of defect sine-Gordon theory

Frigyes Nemes

摘要:

经典的sine-Gordon模型是一个二维可积场论,其粒子解称为孤子。利用它的可积性,人们可以定义它的量子版本,而不需要正则量子化的过程。这种自举方法利用模型的基本性质及其量子特性,尽可能地限制散射矩阵的结构。经典模型可以扩展与可积的不连续性,纯粹传输跳跃缺陷。然后再通过自举方法确定扩展模型的量子版本。但是即将产生的量子理论包含了所谓的CDD不确定性。本文的目的是在缺陷sine-Gordon理论的经典和量子两方面进行半经典近似。通过比较两种方法的结果,可以对CDD模糊度进行限制。经典参数和量子参数之间的关系以及光谱中出现的共振是其他目标。

英文摘要:

The classical sine-Gordon model is a two-dimensional integrable field theory, with particle like solutions the so-called solitons. Using its integrability one can define its quantum version without the process of canonical quantization. This bootstrap method uses the fundamental propterties of the model and its quantum features in order to restrict the structure of the scattering matrix as far as possible. The classical model can be extended with integrable discontinuities, purely transmitting jump-defects. Then the quantum version of the extended model can be determined via the bootstrap method again. But the outcoming quantum theory contains the so-called CDD uncertainity. The aim of this article is to carry throw the semiclassical approximation in both the classical and the quantum side of the defect sine-Gordon theory. The CDD ambiguity can be restricted by comparing the two results. The relation between the classical and quantum parameters as well as the resoncances appeared in the spectrum are other objectives.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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