Engineering long-range interactions between high- $n$ , $n \ge $ 300, strontium Rydberg atoms in a beamEngineering long-range interactions between high-$n$, $n \ge $ 300, strontium Rydberg atoms in a beam

Robert Fields, R. Brienza, F. B. Dunning +2 more

Bulletin of the American Physical SocietyMay 30, 20190 citations

Exploring dipole blockade using high- n strontium Rydberg atoms

Xinyue Zhang, Shuzhen Ye, F. B. Dunning +3 more

APSMay 1, 20140 citations

Blockade involving high- $n$ , $n\sim300$ , strontium Rydberg atomsBlockade involving high-$n$, $n\sim300$, strontium Rydberg atoms

S. Yoshida, Joachim Burgd orfer, Xinyue Zhang +1 more

Bulletin of the American Physical SocietyMay 25, 20160 citations

Exciting and probing polarized strontium Rydberg atoms

Moritz Hiller, S. Yoshida, Joachim Burgdoerfer +3 more

Bulletin of the American Physical SocietyJun 6, 20130 citations

Strontium atom arrays: toward Rydberg entanglement and optical qubit control

Ivaylo S. Madjarov, Jacob P. Covey, A. R. Cooper +5 more

Bulletin of the American Physical SocietyMay 29, 20190 citations

Creating Strontium Rydberg Atoms

Xinyue Zhang

Dipole-dipole interactions, the strongest, longest-range interactions possible between two neutral atoms, cannot be better manifested anywhere else than in a Rydberg atomic system. Rydberg atoms, having high principal quantum numbers n>>1 and dipole moments that scale as n^2, provide a powerful tool to examine dipole-dipole interactions. Therefore, we have studied the production and production rates of strontium Rydberg atoms created using two-photon excitation and have explored their properties in two distinct experiments. In the first experiment, very-high-n (n~300) Rydberg atoms are produced in a tightly collimated atomic beam allowing spectroscopic studies of their energy levels and their Stark effects. Simulations using a two-active-electron model, developed by our theoretical collaborators, allow detailed analysis of the results and are in remarkable agreement with the experimental results. The high density of Rydberg atoms achieved ~ 5*10^5 cm^(-3), in this experiment will allow studies of strongly interacting Rydberg-Rydberg systems. The second experiment, in which a cold strontium Rydberg gas is excited in a magneto-optic trap, features an imaging technique offering both spatial and temporal resolution. We use this technique to observe and study the evolution of an ultra-cold strontium Rydberg gas which reveals the importance of Rydberg-Rydberg interactions in the early stages of this evolution. Strongly interacting Rydberg gas provides an opportunity to realize a very strongly-correlated ultra-cold plasma.Dipole-dipole interactions, the strongest, longest-range interactions possible between two neutral atoms, cannot be better manifested anywhere else than in a Rydberg atomic system. Rydberg atoms, having high principal quantum numbers n>>1 and dipole moments that scale as n^2, provide a powerful tool to examine dipole-dipole interactions. Therefore, we have studied the production and production rates of strontium Rydberg atoms created using two-photon excitation and have explored their properties in two distinct experiments. In the first experiment, very-high-n (n~300) Rydberg atoms are produced in a tightly collimated atomic beam allowing spectroscopic studies of their energy levels and their Stark effects. Simulations using a two-active-electron model, developed by our theoretical collaborators, allow detailed analysis of the results and are in remarkable agreement with the experimental results. The high density of Rydberg atoms achieved ~ 5*10^5 cm^(-3), in this experiment will allow studies of strongly interacting Rydberg-Rydberg systems. The second experiment, in which a cold strontium Rydberg gas is excited in a magneto-optic trap, features an imaging technique offering both spatial and temporal resolution. We use this technique to observe and study the evolution of an ultra-cold strontium Rydberg gas which reveals the importance of Rydberg-Rydberg interactions in the early stages of this evolution. Strongly interacting Rydberg gas provides an opportunity to realize a very strongly-correlated ultra-cold plasma.

May 28, 20130 citations

Engineering long-range interactions between high-

n

, $n \ge $ 300, strontium Rydberg atoms in a beam

Blockade involving high-

n

n\sim300

, strontium Rydberg atoms