State-to-state chemistry for three-body recombination in an ultracold rubidium gas
Experimental investigation of chemical reactions with full quantum state resolution for all reactants and products has been a long-term challenge. Here we prepare an ultracold few-body quantum state of reactants and demonstrate state-to-state chemistry for the recombination of three spin-polarized u...
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| Veröffentlicht in: | Science (American Association for the Advancement of Science) 2017-11, Vol.358 (6365), p.921-924 |
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| container_title | Science (American Association for the Advancement of Science) |
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| creator | Wolf, Joschka Deiß, Markus Krükow, Artjom Tiemann, Eberhard Ruzic, Brandon P. Wang, Yujun D’Incao, José P. Julienne, Paul S. Denschlag, ohannes Hecker |
| description | Experimental investigation of chemical reactions with full quantum state resolution for all reactants and products has been a long-term challenge. Here we prepare an ultracold few-body quantum state of reactants and demonstrate state-to-state chemistry for the recombination of three spin-polarized ultracold rubidium (Rb) atoms to form a weakly bound Rb₂ molecule. The measured product distribution covers about 90% of the final products, and we are able to discriminate between product states with a level splitting as small as 20 megahertz multiplied by Planck’s constant. Furthermore, we formulate propensity rules for the distribution of products, and we develop a theoretical model that predicts many of our experimental observations. The scheme can readily be adapted to other species and opens a door to detailed investigations of inelastic or reactive processes. |
| doi_str_mv | 10.1126/science.aan8721 |
| format | Article |
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| identifier | ISSN: 0036-8075 |
| ispartof | Science (American Association for the Advancement of Science), 2017-11, Vol.358 (6365), p.921-924 |
| issn | 0036-8075 1095-9203 |
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| source | American Association for the Advancement of Science; Jstor Complete Legacy |
| subjects | Atomic properties Beams (radiation) Chemical reactions Collision dynamics Molecular beams Organic Chemistry Quantum mechanics Quantum theory Recombination Rubidium Splitting |
| title | State-to-state chemistry for three-body recombination in an ultracold rubidium gas |
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