Topological Aspects of Superconductors at Dual Point |
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Authors: | REN Ji-Rong XU Dong-Hui ZHANG Xin-Hui DUAN Yi-Shi |
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Institution: | Institute of Theoretical Physics, Lanzhou University,
Lanzhou 730000, China |
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Abstract: | We study the properties of the Ginzburg-Landau model at the dual point for the superconductors. By making use of the U(1) gauge potential decomposition and the φ-mapping theory, we investigate the topological inner structure of the Bogomol'nyi equations and deduce a modified decoupled Bogomol'nyi equation with a nontrivial topological term, which is ignored in conventional model.
We find that the nontrivial topological term is closely related to the N-vortex, which arises from the zero points of the complex scalar field.
Furthermore, we establish a relationship between Ginzburg-Landau
free energy and the winding number. |
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Keywords: | dual point Bogomol'nyi equations vortex |
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