Adiabatic Cooling of Cesium to 700 nK in an Optical Lattice

Anders Kastberg; William D. Phillips; S. L. Rolston; R. J. C. Spreeuw; Poul Jessen

doi:10.1103/physrevlett.74.1542

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 $\ensuremath{\approx}1\ensuremath{\mu}\mathrm{K}$. We then reduce the trapping potential in a few hundred $\ensuremath{\mu}$s, 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.

Keywords

Adiabatic processCaesiumOptical latticeTrappingAtomic physicsPhysicsLattice (music)Kinetic energyWavelengthCondensed matter physicsSuperfluidityOpticsQuantum mechanicsNuclear physics

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Publication Info

Year: 1995
Type: article
Volume: 74
Issue: 9
Pages: 1542-1545
Citations: 256
Access: Closed

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APA Style

                            
                                
                                    Anders Kastberg, 
                                
                                    William D. Phillips, 
                                
                                    S. L. Rolston
                                
                                et al.
                            
                            (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
                        

Identifiers

DOI: 10.1103/physrevlett.74.1542
PMID: 10059055

Data Quality

Data completeness: 77%