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  Observation of the Efimov state of the helium trimer

Kunitski, M., Zeller, S., Voigtsberger, J., Kalinin, A., Schmidt, L. P. H., Schöffler, M., et al. (2015). Observation of the Efimov state of the helium trimer. Science, 348(6234), 551-555. doi:10.1126/science.aaa5601.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-0026-AC44-1 Version Permalink: https://hdl.handle.net/21.11116/0000-0005-1DC8-A
Genre: Journal Article

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 Creators:
Kunitski, Maksim1, Author
Zeller, Stefan1, Author
Voigtsberger, Jörg1, Author
Kalinin, Anton1, Author
Schmidt, Lothar Ph. H.1, Author
Schöffler, Markus1, Author
Czasch, Achim1, Author
Schöllkopf, Wieland2, Author           
Grisenti, Robert E.1, 3, Author
Jahnke, Till1, Author
Blume, Dörte4, Author
Dörner, Reinhard1, Author
Affiliations:
1Institut für Kernphysik, Goethe-Universität Frankfurt am Main, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany, ou_persistent22              
2Molecular Physics, Fritz Haber Institute, Max Planck Society, ou_634545              
3GSI Helmholtz Centre for Heavy Ion Research, Planckstraße 1, 64291 Darmstadt, Germany, ou_persistent22              
4Department of Physics and Astronomy, Washington State University, Pullman, WA 99164-2814, USA, ou_persistent22              

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 Abstract: Quantum theory dictates that upon weakening the two-body interaction in a three-body system, an infinite number of three-body bound states of a huge spatial extent emerge just before these three-body states become unbound. Three helium (He) atoms have been predicted to form a molecular system that manifests this peculiarity under natural conditions without artificial tuning of the attraction between particles by an external field. Here we report experimental observation of this long-predicted but experimentally elusive Efimov state of 4He3 by means of Coulomb explosion imaging. We show spatial images of an Efimov state, confirming the predicted size and a typical structure where two atoms are close to each other while the third is far away.

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Language(s): eng - English
 Dates: 2014-12-232015-03-252015-05-01
 Publication Status: Issued
 Pages: 5
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1126/science.aaa5601
 Degree: -

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Title: Science
Source Genre: Journal
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Publ. Info: Washington, D.C. : American Association for the Advancement of Science
Pages: - Volume / Issue: 348 (6234) Sequence Number: - Start / End Page: 551 - 555 Identifier: ISSN: 0036-8075
CoNE: https://pure.mpg.de/cone/journals/resource/991042748276600_1