Dynamics of OH(2Pi)-He collisions in combined electric and magnetic fields

Abstract

We use accurate quantum mechanical calculations to analyze the effects of parallel electric and magnetic fields on collision dynamics of OH(2Pi) molecules. It is demonstrated that spin relaxation in 3He-OH collisions at temperatures below 0.01 K can be effectively suppressed by moderate electric fields of order 10 kV/cm. We show that electric fields can be used to manipulate Feshbach resonances in collisions of cold molecules. Our results can be verified in experiments with OH molecules in Stark decelerated molecular beams and electromagnetic traps.

20 pages, 5 figures, submitted to Faraday Discuss. 142: Cold and Ultracold Molecules

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Cited by in corpus (12)

• Manipulation of Molecules with Electromagnetic Fields
• Ultracold spin-polarized mixtures of 2Sigma molecules with S-state atoms: Collisional stability and implications for sympathetic cooling
• Scattering of Stark-decelerated OH radicals with rare-gas atoms
• Atom-molecule collisions, spin relaxation, and sympathetic cooling in an ultracold spin-polarized Rb(${}^2\mathrm{S}$)-SrF${(}^2{\Sigma }^{+})$ mixture
• Total angular momentum representation for atom-molecule collisions in electric fields
• Ultracold hydrogen atoms: a versatile coolant to produce ultracold molecules
• Collisional properties of cold spin-polarized nitrogen gas: theory, experiment, and prospects as a sympathetic coolant for trapped atoms and molecules
• Total angular momentum representation for state-to-state quantum scattering of cold molecules in a magnetic field
• Cold collisions of an open-shell S-state atom with a ^2Pi molecule: N(^4S) colliding with OH in a magnetic field
• Restricted basis set coupled-channel calculations on atom-molecule collisions in magnetic fields
• Universal stereodynamics of cold atom-molecule collisions in electric fields
• Highly spin-polarized molecules via collisional microwave pumping