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Topological Vortices in Superfluid Films |
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| Authors: | WANG Jun-Ping and DUAN Yi-Shi |
| Institution: | 1. Institute of Science and Technology for Opto-electronic Information, Yantai University, Yantai 264005, China ;2. Institute of Theoretical Physics, Lanzhou University, Lanzhou 730000, China |
| Abstract: | We study the topological structure of the vortex system in a superfluid film. Explicit expressions for the vortex density and velocity field as functions of the superfluid order parameter are derived. The evolution of vortices is also studied from the topological properties of the superfluid order parameter field. |
| Keywords: | vortex superfluid films |
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