Superconducting atom chips: advantages and challenges

Details Superconducting atom chips: advantages and challenges Superconducting atom chips: advantages and challenges

2008-08-13

arxiv.org/abs/0808.1897v1

Eur. Phys. J. D 51 (2009) 247

Physics

Quantum Physics

submitted to Eur. Phys. J. D, latex article class (27 pages, 20 .eps figure files)

Scientific paper

10.1140/epjd/e2008-00261-5

Superconductors are considered in view of applications to atom chip devices. The main features of magnetic traps based on superconducting wires in the Meissner and mixed states are discussed. The former state may mainly be interesting for improved atom optics, while in the latter, cold atoms may provide a probe of superconductor phenomena. The properties of a magnetic side guide based on a single superconducting strip wire placed in an external magnetic field are calculated analytically and numerically. In the mixed state of type II superconductors, inhomogeneous trapped magnetic flux, relaxation processes and noise caused by vortex motion are posing specific challenges for atom trapping.

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