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arXiv 1602.09072math-phmath.MPquant-ph
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具有Neumann边界条件的扰动sine-Gordon方程的扩散效应

On diffusion effects of the perturbed sine-Gordon equation with Neumann boundary conditions

Monica De Angelis

摘要:

本文讨论了描述约瑟夫森结电动力学的微扰sine-Gordon方程的Neumann边界问题。研究了由具有小扩散系数的高阶导数描述的粘性项的行为。利用傅里叶级数确定了与三阶线性算子有关的格林函数,并建立了快速收敛的性质。此外,还确定了双曲方程的几类解,证明了至少存在一个导数有界的解。结果表明,扩散效应是有界的,当小扩散系数趋于零时,扩散效应趋于零。

英文摘要:

The Neumann boundary problem for the perturbed sine-Gordon equation describing the electrodynamics of Josephson junctions has been considered. The behavior of a viscous term, described by a higher-order derivative with small diffusion coefficient, is investigated. The Green function related to the linear third order operator is determined by means of Fourier series, and properties of rapid convergence are established. Furthermore, some classes of solutions of the hyperbolic equation have been determined, proving that there exists at least one solution whose derivatives are bounded. Results prove that diffusion effects are bounded and tend to zero when the small diffusion coefficient tends to zero.

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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