Quasi-forbidden 2-body Förster resonances in cold Cs Rydberg gas

Abstract

Cold Rydberg atoms are known to display dipole-dipole interaction allowed resonances, also called Förster resonances, which lead to an efficient energy transfer when the proper electric field is used. This electric field also enables resonances which do not respect the dipole-dipole selection rules under zero field. A few of these quasi-forbidden resonances have been observed but they are often overlooked. Here we show that in cold ${}^{133}$Cs atoms there is a large number of these resonances that display a significant transfer efficiency due to their strong interactions, even at low electric field. We also develop a graphical method enabling to find all possible resonances simultaneously. The resulting dramatic increase in the total number of addressable resonant energy transfers at different electric fields could have implications in the search for few-body interactions or macro-molecules built from Rydberg atoms.

13 pages, 12 figures, submitted to Physical Review A

References in corpus (8)

• Quasiclassical calculations of BBR-induced depopulation rates and effective lifetimes of Rydberg nS, nP and nD alkali-metal atoms with n < 80
• Dipole blockade in a cold Rydberg atomic sample
• Coherent Excitation Transfer in a Spin Chain of Three Rydberg Atoms
• Coherent dipole-dipole coupling between two single atoms at a Förster resonance
• Spatially resolved observation of dipole-dipole interaction between Rydberg atoms
• Measurement of the Angular Dependence of the Dipole-Dipole Interaction Between Two Individual Rydberg Atoms at a Förster Resonance
• Observation of dipole-quadrupole interaction in an ultracold gas of Rydberg atoms
• Stark-tuned Förster resonance and dipole blockade for two to five cold Rydberg atoms: Monte Carlo simulations for various spatial configurations

Cited by in corpus (5)

• Enhancement of Rydberg-mediated single-photon nonlinearities by electrically tuned Förster Resonances
• Two-qubit gates using adiabatic passage of the Stark-tuned Förster resonances in Rydberg atoms
• Adiabatic passage of radiofrequency-assisted Forster resonances in Rydberg atoms for two-qubit gates and generation of Bell states
• Quantum Many-Body Scars in Few-Body Dipole-Dipole Interactions
• Exotic photonic molecules via Lennard-Jones-like potentials