Dipole blockade through Rydberg Forster resonance energy transfer
Thibault Vogt, Matthieu Viteau, Jianming Zhao, Amodsen Chotia, Daniel Comparat, Pierre Pillet
Abstract
High resolution laser excitation of np Rydberg states of cesium atoms shows a dipole blockade at Förster 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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