Affiliation:
1. Department of Chemical Physics, Weizmann Institute of Science, Rehovot, Israel.
Abstract
Relatively Cold
Temperature is essentially a measure of relative atomic or molecular motion. Low temperature does not necessarily imply a sample at absolute rest—what is important is for every member of the sample to be moving (or not moving) at the same velocity. Techniques for studying reactions under extreme cooling have nonetheless tended to focus on slowing down molecules.
Henson
et al.
(p.
234
) now demonstrate an alternative approach in which two beams of distinct gas-phase reagents are merged so as to continue forward with very little spread in their velocity. The interactions thus occur at millikelvin temperatures, revealing signatures of nonclassical dynamics such as oscillatory ionization probabilities with small shifts in energy.
Publisher
American Association for the Advancement of Science (AAAS)
Cited by
256 articles.
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