The Bifurcation of Vortex Current in the Time-Dependent Ginzburg–Landau Model*

Xu Tao; Yang Guo-Hong; Duan Yi-Shi

doi:10.1088/0253-6102/35/2/157

The Bifurcation of Vortex Current in the Time-Dependent Ginzburg–Landau Model^*

Xu Tao¹, Yang Guo-Hong² and Duan Yi-Shi²

© International Academic Publishers
Communications in Theoretical Physics, Volume 35, Number 2 Citation Xu Tao et al 2001 Commun. Theor. Phys. 35 157 DOI 10.1088/0253-6102/35/2/157

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¹ Department of Applied Physics, Institute of Science, Xi'an Jiao Tong University, Xi'an 710049, China

² Institute of Theoretical Physics, Lanzhou University, Lanzhou 730000, China

Dates

Received 28 July 1999

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Abstract

By the method of $\phi$ -mapping topological current theory, the bifurcation behavior of the topological current is discussed in detail in the $O(n)$ symmetrical time-dependent Ginzburg–Landau model at the critical points of the order parameter field. The different directions of the branch curves at the critical point have been obtained.

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*
The project supported by National Natural Science Foundation of China