期刊
PHYSICAL REVIEW LETTERS
卷 97, 期 8, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.97.083003
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High resolution laser excitation of np Rydberg states of cesium atoms shows a dipole blockade at Forster resonances corresponding to the resonant dipole-dipole energy transfer of the np+np -> ns+(n+1)s reaction. The dipole-dipole interaction can be tuned on and off by the Stark effect, and such a process, observed for relatively low n(25-41), is promising for quantum gate devices. Both Penning ionization and saturation in the laser excitation can limit the range of observation of the dipole blockade.
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