Programmable trap geometries with superconducting atom chips

T. Müller; B. Zhang; R. Fermani; K. S. Chan; M. J. Lim; R. Dumke

doi:10.1103/PhysRevA.81.053624

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Programmable trap geometries with superconducting atom chips

T. Müller, B. Zhang, R. Fermani, K. S. Chan, M. J. Lim, R. Dumke

DOI 10.1103/PhysRevA.81.053624 · Physical Review A

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Abstract

We employ the hysteretic behavior of a superconducting thin film in the remanent state to generate different traps and flexible magnetic potentials for ultracold atoms. The trap geometry can be programed by externally applied fields. This approach for atom optics is demonstrated by three different trap types realized on a single microstructure: a Z-type trap, a double trap, and a bias-field-free trap. Our studies show that superconductors in the remanent state provide a versatile platform for atom optics and applications in ultracold quantum gases.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
YBa2Cu3O7-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	93	Pressure not reported	unknown