6533b859fe1ef96bd12b8055
RESEARCH PRODUCT
Controlling the interactions of a few cold Rb Rydberg atoms by radiofrequency-assisted F��rster resonances
D. B. TretyakovV. M. EntinE. A. YakshinaI. I. BeterovC. AndreevaI. I. Ryabtsevsubject
Quantum Gases (cond-mat.quant-gas)Atomic Physics (physics.atom-ph)FOS: Physical sciencesPhysics::Atomic PhysicsQuantum Physics (quant-ph)description
Long-range interactions between cold Rydberg atoms, which are used in many important applications, can be enhanced using F��rster resonances between collective many-body states controlled by an external electric field. Here we report on the first experimental observation of highly-resolved radio-frequency-assisted F��rster resonances in a few cold Rb Rydberg atoms. We also observed radio-frequency-induced F��rster resonances which cannot be tuned by a dc electric field. They imply an efficient transition from van der Waals to resonant dipole-dipole interaction due to Floquet sidebands of Rydberg levels appearing in the rf-field. This method can be applied to enhance the interactions of almost arbitrary Rydberg atoms with large principal quantum numbers.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2014-01-01 |