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Title: Universality of the Three-Body Parameter for Efimov States in Ultracold Cesium

Abstract

We report on the observation of triatomic Efimov resonances in an ultracold gas of cesium atoms. Exploiting the wide tunability of interactions resulting from three broad Feshbach resonances in the same spin channel, we measure magnetic-field dependent three-body recombination loss. The positions of the loss resonances yield corresponding values for the three-body parameter, which in universal few-body physics is required to describe three-body phenomena and, in particular, to fix the spectrum of Efimov states. Our observations show a robust universal behavior with a three-body parameter that stays essentially constant.

Authors:
; ; ; ; ;  [1];  [1];  [2];  [3];  [4]
  1. Institut fuer Experimentalphysik and Zentrum fuer Quantenphysik, Universitaet Innsbruck, 6020 Innsbruck (Austria)
  2. (Austria)
  3. Joint Quantum Institute, NIST and University of Maryland, Gaithersburg, Maryland 20899-8423 (United States)
  4. Department of Chemistry, Durham University, South Road, Durham, DH1 3LE (United Kingdom)
Publication Date:
OSTI Identifier:
21611772
Resource Type:
Journal Article
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 107; Journal Issue: 12; Other Information: DOI: 10.1103/PhysRevLett.107.120401; (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0031-9007
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ATOMS; CESIUM; INTERACTIONS; MAGNETIC FIELDS; RECOMBINATION; RESONANCE; SPECTRA; SPIN; THREE-BODY PROBLEM; ALKALI METALS; ANGULAR MOMENTUM; ELEMENTS; MANY-BODY PROBLEM; METALS; PARTICLE PROPERTIES

Citation Formats

Berninger, M., Zenesini, A., Huang, B., Harm, W., Naegerl, H.-C., Ferlaino, F., Grimm, R., Institut fuer Quantenoptik und Quanteninformation, Oesterreichische Akademie der Wissenschaften, 6020 Innsbruck, Julienne, P. S., and Hutson, J. M. Universality of the Three-Body Parameter for Efimov States in Ultracold Cesium. United States: N. p., 2011. Web. doi:10.1103/PHYSREVLETT.107.120401.
Berninger, M., Zenesini, A., Huang, B., Harm, W., Naegerl, H.-C., Ferlaino, F., Grimm, R., Institut fuer Quantenoptik und Quanteninformation, Oesterreichische Akademie der Wissenschaften, 6020 Innsbruck, Julienne, P. S., & Hutson, J. M. Universality of the Three-Body Parameter for Efimov States in Ultracold Cesium. United States. doi:10.1103/PHYSREVLETT.107.120401.
Berninger, M., Zenesini, A., Huang, B., Harm, W., Naegerl, H.-C., Ferlaino, F., Grimm, R., Institut fuer Quantenoptik und Quanteninformation, Oesterreichische Akademie der Wissenschaften, 6020 Innsbruck, Julienne, P. S., and Hutson, J. M. Fri . "Universality of the Three-Body Parameter for Efimov States in Ultracold Cesium". United States. doi:10.1103/PHYSREVLETT.107.120401.
@article{osti_21611772,
title = {Universality of the Three-Body Parameter for Efimov States in Ultracold Cesium},
author = {Berninger, M. and Zenesini, A. and Huang, B. and Harm, W. and Naegerl, H.-C. and Ferlaino, F. and Grimm, R. and Institut fuer Quantenoptik und Quanteninformation, Oesterreichische Akademie der Wissenschaften, 6020 Innsbruck and Julienne, P. S. and Hutson, J. M.},
abstractNote = {We report on the observation of triatomic Efimov resonances in an ultracold gas of cesium atoms. Exploiting the wide tunability of interactions resulting from three broad Feshbach resonances in the same spin channel, we measure magnetic-field dependent three-body recombination loss. The positions of the loss resonances yield corresponding values for the three-body parameter, which in universal few-body physics is required to describe three-body phenomena and, in particular, to fix the spectrum of Efimov states. Our observations show a robust universal behavior with a three-body parameter that stays essentially constant.},
doi = {10.1103/PHYSREVLETT.107.120401},
journal = {Physical Review Letters},
issn = {0031-9007},
number = 12,
volume = 107,
place = {United States},
year = {2011},
month = {9}
}