# Dynamics of $$OH(^{2}\Pi)–He$$ Collisions in Combined Electric and Magnetic Fields

 Title: Dynamics of $$OH(^{2}\Pi)–He$$ Collisions in Combined Electric and Magnetic Fields Author: Tscherbul, Timur V.; Groenenboom, Gerrit C.; Krems, Roman V.; Dalgarno, Alexander Note: Order does not necessarily reflect citation order of authors. Citation: Tscherbul, Timur V., Gerrit C. Groenenboom, Roman V. Krems, and Alex Dalgarno. 2009. Dynamics of $$OH(^{2}\Pi)–He$$ collisions in combined electric and magnetic fields. Faraday Discussions 142(0): 127-141. Full Text & Related Files: faradaydiscuss.pdf (350.5Kb; PDF) Abstract: We use accurate quantum mechanical calculations to analyze the effects of parallel electric and magnetic fields on collision dynamics of $$OH(^{2}\Pi)$$ molecules. It is demonstrated that spin relaxation in $$^{3}He–OH$$ collisions at temperatures below 0.01 K can be effectively suppressed by moderate electric fields of order $$10 kV cm^{−1}$$. We show that electric fields can be used to manipulate Feshbach resonances in collisions of cold molecules. Our theoretical results can be tested in experiments with OH molecules in Stark decelerated molecular beams and electromagnetic traps. Published Version: doi:10.1039/B819198K Other Sources: http://arxiv.org/abs/0811.4018 http://www.theochem.ru.nl/files/dbase/preprint-OH-Faraday-2009.pdf Terms of Use: This article is made available under the terms and conditions applicable to Open Access Policy Articles, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#OAP Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:8923769

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Peer reviewed scholarly articles from the Faculty of Arts and Sciences of Harvard University