Adiabatic cooling of cesium to 700 nK in an optical lattice

A. Kastberg, W. D. Phillips, S. L. Rolston, R. J.C. Spreeuw, P. S. Jessen

Research output: Contribution to journalArticle

208 Scopus citations

Abstract

We localize Cs atoms in wavelength-sized potential wells of an optical lattice, and cool them to a three-dimensional temperature of 700 nK by adiabatic expansion. In the optical lattice we precool the atoms to 1 μK. We then reduce the trapping potential in a few hundred μs, causing the atomic center-of-mass distribution to expand and the temperature to decrease by an amount which agrees with a simple 3D band theory. These are the lowest 3D kinetic temperatures ever measured.

Original languageEnglish (US)
Pages (from-to)1542-1545
Number of pages4
JournalPhysical review letters
Volume74
Issue number9
DOIs
StatePublished - Jan 1 1995

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Kastberg, A., Phillips, W. D., Rolston, S. L., Spreeuw, R. J. C., & Jessen, P. S. (1995). Adiabatic cooling of cesium to 700 nK in an optical lattice. Physical review letters, 74(9), 1542-1545. https://doi.org/10.1103/PhysRevLett.74.1542