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- W2079173682 endingPage "1406" @default.
- W2079173682 startingPage "1403" @default.
- W2079173682 abstract "We describe techniques for creating long-lived magneto-optical and magnetostatic traps for neutral atoms. These traps exist in a sealed cryogenic environment with a temperature near 4 K, where the background gas pressure can be extremely low. To date we have observed cesium magneto-optical traps with background-limited lifetimes in excess of 1 h, and magnetostatic traps with lifetimes of nearly 10 min. From these observations we use the known He-Cs van der Waals collision cross section to infer typical background gas pressures in our apparatus below 4ifmmodetimeselsetexttimesfi{}${10}^{mathrm{ensuremath{-}}12}$ Torr. With hardware improvements we expect this pressure can be made much lower, extending the magnetostatic-trap lifetimes one to two orders of magnitude. Furthermore, with a cryogenic system one can use superconducting magnets and SQUID detectors to trap and to nondestructively sense spin-polarized atoms. With superconducting microstructures one can achieve very large magnetic-field gradients and curvatures, as high as ensuremath{sim}${10}^{6}$ G/cm and ensuremath{sim}${10}^{9}$ G/${mathrm{cm}}^{2}$, respectively, for use in magnetic and magneto-optical traps." @default.
- W2079173682 created "2016-06-24" @default.
- W2079173682 creator A5013691445 @default.
- W2079173682 creator A5066563806 @default.
- W2079173682 date "1995-02-01" @default.
- W2079173682 modified "2023-10-17" @default.
- W2079173682 title "Creating long-lived neutral-atom traps in a cryogenic environment" @default.
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- W2079173682 doi "https://doi.org/10.1103/physreva.51.1403" @default.
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