Electric-field induced dipole blockade with Rydberg atoms

Details Electric-field induced dipole blockade with Rydberg atoms Electric-field induced dipole blockade with Rydberg atoms

2007-03-08

arxiv.org/abs/physics/0703102v2

Physics

Atomic Physics

4 pages

Scientific paper

10.1103/PhysRevLett.99.073002

High resolution laser Stark excitation of np (60 < n < 85) Rydberg states of ultra-cold cesium atoms shows an efficient blockade of the excitation attributed to long-range dipole-dipole interaction. The dipole blockade effect is observed as a quenching of the Rydberg excitation depending on the value of the dipole moment induced by the external electric field. Effects of eventual ions which could match the dipole blockade effect are discussed in detail but are ruled out for our experimental conditions. Analytic and Monte-Carlo simulations of the excitation of an ensemble of interacting Rydberg atoms agree with the experiments indicates a major role of the nearest neighboring Rydberg atom.

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