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Quantum-State Controlled Chemical Reactions of Ultracold Potassium-Rubidium Molecules
Open accessAbstract
Colliding in the Cold: Chemical reactions occur through molecular collisions, which, in turn, are governed by the distributions of energy in each colliding partner. What happens when molecules are cooled so that they no longer have sufficient energy to collide?Ospelkaus et al.(p.853; see the Perspective by Hutson) explored this question by preparing a laser-cooled sample of potassium rubidium (KRb) diatomics with barely any residual energy in any form (translational, rotational, vibrational, or electronic). By monitoring heat release over time, evidence was gathered for exothermic atom exchange reactivity through quantum mechanical tunneling. As predicted by theory, these reactions were exquisitely sensitive to the molecular states, with rates changing by orders of magnitude on varying minor factors such as nuclear spin orientation.
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Cites
Observation of collective excitation of two individual atoms in the Rydberg blockade regime
Gaëtan, A., Miroshnychenko, Y., Wilk, T., Chotia, A., Viteau, M., Comparat, D., Pillet, P., Browaeys, A., & Grangier, P. (2009) · Nature Physics · doi:10.1038/nphys1183 · Cited by 846
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Ultracold Molecules under Control!
Quéméner, G., & Julienne, P. S. (2012) · Chemical Reviews · doi:10.1021/cr300092g · Cited by 406
Self-citationThe Buffer Gas Beam: An Intense, Cold, and Slow Source for Atoms and Molecules
Hutzler, N. R., Lu, H.-I., & Doyle, J. M. (2012) · Chemical Reviews · doi:10.1021/cr200362u · Cited by 377
Metadata
- Authors
- Ospelkaus, S., Ni, K.-K., Wang, D., de Miranda, M. H. G., Neyenhuis, B., Quéméner, G., Julienne, P. S., Bohn, J. L., Jin, D. S., & Ye, J.
- Venue
- Science
- Published
- 2010-02-12
- Volume
- 327
- Issue
- 5967
- Pages
- 853-857
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2125154645
- Cited by
- 897
- References
- 1
- FWCI
- 43.61
- Type
- journal article
- Language
- en
- Open access
- green
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- Ospelkaus, S., Ni, K.-K., Wang, D., de Miranda, M. H. G., Neyenhuis, B., Quéméner, G., Julienne, P. S., Bohn, J. L., Jin, D. S., & Ye, J. (2010). Quantum-State Controlled Chemical Reactions of Ultracold Potassium-Rubidium Molecules. Science. https://doi.org/10.1126/science.1184121
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