Superconducting atom chips

M. Siercke, K. S. Chan, B. Zhang, M. J. Lim, R. Dumke

Research output: Chapter in Book/Report/Conference proceedingConference contribution


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.

Original languageEnglish (US)
Title of host publicationInternational Quantum Electronics Conference, IQEC 2011
Number of pages3
StatePublished - 2011
EventInternational Quantum Electronics Conference, IQEC 2011 - Sydney, Australia
Duration: Aug 28 2011Sep 1 2011

Publication series

NameOptics InfoBase Conference Papers
ISSN (Electronic)2162-2701


OtherInternational Quantum Electronics Conference, IQEC 2011

All Science Journal Classification (ASJC) codes

  • Instrumentation
  • Atomic and Molecular Physics, and Optics


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