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arXiv 1007.4778cond-mat.supr-con
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约瑟夫森电流二次谐波对长结中磁通量稳定性的影响

Influence of Josephson current second harmonic on stability of magnetic flux in long junctions

P. Kh. Atanasova, T. L. Boyadjiev, Yu. M. Shukrinov, E. V. Zemlyanaya, P. Seidel

摘要:

研究了长约瑟夫森结(LJJ)模型,该模型考虑了约瑟夫森电流的傅里叶展开的二次谐波。通过数值计算,研究了静态磁通量分布与模型参数的关系。静态解决方案的稳定性检查相关的Sturm-Liouville问题的最小特征值的符号。在此基础上,研究了二次谐波对主解的磁通量分布稳定性的影响。

英文摘要:

We study the long Josephson junction (LJJ) model which takes into account the second harmonic of the Fourier expansion of Josephson current. The dependence of the static magnetic flux distributions on parameters of the model are investigated numerically. Stability of the static solutions is checked by the sign of the smallest eigenvalue of the associated Sturm-Liouville problem. New solutions which do not exist in the traditional model, have been found. Investigation of the influence of second harmonic on the stability of magnetic flux distributions for main solutions is performed.

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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