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Experimental determination of the helium 2 3P1-1 1S0 transition rate

Dall, Robert; Byron, Lesa; Truscott, Andrew; Baldwin, Kenneth


We present the first experimental determination of the 2 3P1–1 1S0 transition rate in helium and compare this measurement with theoretical quantum-electrodynamic predictions. The experiment exploits the very long (∼1  minute) confinement times obtained for atoms magneto-optically trapped in an apparatus used to create a Bose-Einstein condensate of metastable (2 3S1) helium. The 2 3P1–1 1S0 transition rate is measured directly from the decay rate of the cold atomic cloud following 1083 nm laser...[Show more]

CollectionsANU Research Publications
Date published: 2008
Type: Journal article
Source: Physical Review Letters
DOI: PhysRevLett.100.023001
Access Rights: Open Access


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