2 papers
cond-mat.other2005
Accurate determination of the scattering length of metastable Helium atoms using dark resonances between atoms and exotic molecules
S. Moal, M. Portier, J. Kim +4
We present a new measurement of the s-wave scattering length a of spin-polarized helium atoms in the 2^3S_1 metastable state. Using two-photon photoassociation spectroscopy and dar…
physics.atom-ph2005
Frequency shifts of photoassociative spectra of ultracold metastable Helium atoms : a new measurement of the s-wave scattering length
J. Kim, S. Moal, M. Portier +3
We observe light-induced frequency shifts in one-color photoassociative spectra of magnetically trapped He atoms in the metastable state. A pair of ultracold spin-…