Design of magnetic traps for neutral atoms with vortices in type-II superconducting microstructures
We design magnetic traps for atoms based on the average magnetic field of vortices induced in a type-II superconducting thin film. This magnetic field is the critical ingredient of the demonstrated vortex-based atom traps, which operate without transport current. We use Bean’s critical-state method...
| Main Authors: | , , , , |
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| Format: | Journal Article |
| Language: | English |
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2014
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| Online Access: | https://hdl.handle.net/10356/101840 http://hdl.handle.net/10220/18816 |
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| author | Zhang, B. Fermani, R. Müller, T. Lim, M. J. Dumke, Rainer Helmut |
| author2 | School of Physical and Mathematical Sciences |
| author_facet | School of Physical and Mathematical Sciences Zhang, B. Fermani, R. Müller, T. Lim, M. J. Dumke, Rainer Helmut |
| author_sort | Zhang, B. |
| collection | NTU |
| description | We design magnetic traps for atoms based on the average magnetic field of vortices induced in a type-II superconducting thin film. This magnetic field is the critical ingredient of the demonstrated vortex-based atom traps, which operate without transport current. We use Bean’s critical-state method to model the vortex field through mesoscopic supercurrents induced in the thin strip. The resulting inhomogeneous magnetic fields are studied in detail and compared to those generated by multiple normally conducting wires with transport currents. Various vortex patterns can be obtained by programing different loading-field and transport-current sequences. These variable magnetic fields are employed to make versatile trapping potentials. |
| first_indexed | 2024-10-01T02:38:01Z |
| format | Journal Article |
| id | ntu-10356/101840 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T02:38:01Z |
| publishDate | 2014 |
| record_format | dspace |
| spelling | ntu-10356/1018402023-02-28T19:43:16Z Design of magnetic traps for neutral atoms with vortices in type-II superconducting microstructures Zhang, B. Fermani, R. Müller, T. Lim, M. J. Dumke, Rainer Helmut School of Physical and Mathematical Sciences DRNTU::Science::Physics We design magnetic traps for atoms based on the average magnetic field of vortices induced in a type-II superconducting thin film. This magnetic field is the critical ingredient of the demonstrated vortex-based atom traps, which operate without transport current. We use Bean’s critical-state method to model the vortex field through mesoscopic supercurrents induced in the thin strip. The resulting inhomogeneous magnetic fields are studied in detail and compared to those generated by multiple normally conducting wires with transport currents. Various vortex patterns can be obtained by programing different loading-field and transport-current sequences. These variable magnetic fields are employed to make versatile trapping potentials. ASTAR (Agency for Sci., Tech. and Research, S’pore) Published version 2014-02-18T04:34:50Z 2019-12-06T20:45:25Z 2014-02-18T04:34:50Z 2019-12-06T20:45:25Z 2010 2010 Journal Article Zhang, B., Fermani, R., Müller, T., Lim, M. J., & Dumke, R. H. (2010). Design of magnetic traps for neutral atoms with vortices in type-II superconducting microstructures. Physical review A, 81(6), 063408-. https://hdl.handle.net/10356/101840 http://hdl.handle.net/10220/18816 10.1103/PhysRevA.81.063408 en Physical review A © 2010 The American Physical Society. This paper was published in Physical Review A and is made available as an electronic reprint (preprint) with permission of The American Physical Society. The paper can be found at the following official DOI: [http://dx.doi.org/10.1103/PhysRevA.81.063408]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law. application/pdf |
| spellingShingle | DRNTU::Science::Physics Zhang, B. Fermani, R. Müller, T. Lim, M. J. Dumke, Rainer Helmut Design of magnetic traps for neutral atoms with vortices in type-II superconducting microstructures |
| title | Design of magnetic traps for neutral atoms with vortices in type-II superconducting microstructures |
| title_full | Design of magnetic traps for neutral atoms with vortices in type-II superconducting microstructures |
| title_fullStr | Design of magnetic traps for neutral atoms with vortices in type-II superconducting microstructures |
| title_full_unstemmed | Design of magnetic traps for neutral atoms with vortices in type-II superconducting microstructures |
| title_short | Design of magnetic traps for neutral atoms with vortices in type-II superconducting microstructures |
| title_sort | design of magnetic traps for neutral atoms with vortices in type ii superconducting microstructures |
| topic | DRNTU::Science::Physics |
| url | https://hdl.handle.net/10356/101840 http://hdl.handle.net/10220/18816 |
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