Effective Control of Cold Collisions with Radio Frequency Fields

Abstract

We study ${}^{87}$Rb cold collisions in a static magnetic field and a single-color radio frequency (RF) field by employing the multi-channel quantum defect theory in combination with the Floquet method to solve the two-body time-dependent Schrödinger equation. Our results show that RF fields can modify the two-body scattering length by a large scale through Feshbach resonances both in low and high static magnetic field regimes. Such RF induced Feshbach resonances can be applied to quenching experiments or controlling interactions in spinor condensates. Here, we also show that analogous to photo-association, RF fields can also associate cold atoms into molecules at a useful rate.

arXiv comment5 pages, 4 figures

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Cited by in corpus (11)

• Patterns, spin-spin correlations and competing instabilities in driven quasi-two-dimensional spin-1 Bose-Einstein condensates
• Mesoscopics of half-quantum vortex pair deconfinement in a trapped spin-one condensate
• Laser-Assisted Self-Induced Feshbach resonance for ultracold polar molecule formation
• Three-body spin mixing in spin-1 Bose-Einstein condensates
• Observation of Optomechanical Strain in a Cold Atomic Cloud
• Non-adiabatic molecular association in thermal gases driven by radio-frequency pulses
• Surface hopping molecular dynamics simulation of ultrafast methyl iodide photodissociation mapped by Coulomb explosion imaging
• Floquet-Engineering of Feshbach Resonances in Ultracold Gases
• Quenched Magneto-association of Ultracold Feshbach Molecules
• Ultrafast photodissociation dynamics of dichloromethane on three-dimensional potential energy surfaces and its Coulomb explosion signature
• Coherent control mechanisms of Penning and associative ionization in cold He${}^{\ast }(2^3\text{S})$-He${}^{\ast }(2^3\text{S})$ reactive scattering