Evaporative Cooling of Sodium Atoms | RDL Research Database

Abstract

We have observed evaporative cooling of magnetically trapped sodium atoms. A novel technique, rf induced evaporation, was used to reduce the temperature by a factor of 12 and increase the phase space density by more than 2 orders of magnitude. The elastic collision cross section of cold sodium atoms in the $F\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}1$, ${m}_{F}\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}\ensuremath{-}1$ hyperfine state was determined to be $6\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}12}$ c${\mathrm{m}}^{2}$, which implies a positive value of the scattering length.

Keywords

Hyperfine structureAtomic physicsPhysicsSodiumCondensed matter physicsMaterials science

Affiliated Institutions

Massachusetts Institute of Technology US

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Publication Info

Year: 1995
Type: article
Volume: 74
Issue: 26
Pages: 5202-5205
Citations: 238
Access: Closed

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APA Style

                            
                                
                                    Kendall B. Davis, 
                                
                                    Marc-Oliver Mewes, 
                                
                                    Michael Joffe
                                
                                et al.
                            
                            (1995). 
                            Evaporative Cooling of Sodium Atoms. 
                            Physical Review Letters
                            , 74
                            (26)
                            , 5202-5205.
                            https://doi.org/10.1103/physrevlett.74.5202
                        

Identifiers

DOI: 10.1103/physrevlett.74.5202