Rydberg optical Feshbach resonances in cold gases

Abstract

We propose a novel scheme to efficiently tune the scattering length of two colliding ground-state atoms by off-resonantly coupling the scattering-state to an excited Rydberg-molecular state using laser light. For the s-wave scattering of two colliding ${}^{87}\mathrm{Rb}$ atoms, we demonstrate that the effective optical length and pole strength of this Rydberg optical Feshbach resonance can be tuned over several orders of magnitude, while incoherent processes and losses are minimised. Given the ubiquity of Rydberg molecular states, this technique should be generally applicable to homo-nuclear atomic pairs as well as to atomic mixtures with s-wave (or even p-wave) scattering.

8 pages, 5 figures. Accepted in Phys. Rev. A

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Cited by in corpus (8)

• Ultracold Rydberg Molecules
• Finite-range interacting Ising quantum magnets with Rydberg atoms in optical lattices - From Rydberg superatoms to crystallization
• Trilobites, butterflies, and other exotic specimens of long-range Rydberg molecules
• Experimental realization of a Rydberg optical Feshbach resonance in a quantum many-body system
• Alignment of s-state Rydberg molecules in magnetic fields
• The building principle of triatomic trilobite Rydberg molecules
• Photoassociation of rovibrational Rydberg molecules
• Fast spin squeezing by distance-selective long-range interactions with Rydberg molecule dressing