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Superconducting atom chips
Quantum Electronics Conference & Lasers and Electro-Optics (CLEO/IQEC/PACIFIC RIM) (2011)
  • M. Siercke
  • K. S. Chan
  • B. Zhang
  • Michael J. Lim, Rowan University
  • R. Dumke
We investigate superconducting chip structures for trapping and manipulating atoms. These structures are 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 trap, which operate without transport current. We employ the hysteretic behavior of a superconducting thin film in the remanent state to generate different traps and flexible magnetic potentials for ultra-cold atoms. The experimental realization can be described by the Bean's critical-state method to model the vortex field through mesoscopic super currents induced in the thin strip. Various vortex patterns can be obtained by programming different loading-field and transport current sequences. Furthermore we will discuss the expected enhanced lifetime of atoms trapped close to a superconducting surface in comparison with a metallic surface.
  • Magnetic fields,
  • Charge carrier processes,
  • Superconducting thin films,
  • Superconducting magnets,
  • Films,
  • Strips
Publication Date
Citation Information
M. Siercke, K. S. Chan, B. Zhang, Michael J. Lim, et al.. "Superconducting atom chips" Quantum Electronics Conference & Lasers and Electro-Optics (CLEO/IQEC/PACIFIC RIM) (2011)
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