Collisional relaxation of Feshbach molecules and three-body recombination in Rb87 Bose-Einstein condensates

G. Smirne; R. M. Godun; D. Cassettari; V. Boyer; C. J. Foot; T. Volz; N. Syassen; S. Dürr; G. Rempe; M. D. Lee; K. Góral; T. Köhler

doi:10.1103/PhysRevA.75.020702

Collisional relaxation of Feshbach molecules and three-body recombination in Rb87 Bose-Einstein condensates

G. Smirne^*, R. M. Godun, D. Cassettari, V. Boyer, C. J. Foot, T. Volz, N. Syassen, S. Dürr, G. Rempe, M. D. Lee, K. Góral, T. Köhler

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

26 Citations (Scopus)

Abstract

We predict the resonance-enhanced magnetic field dependence of atom-dimer relaxation and three-body recombination rates in a Rb87 Bose-Einstein condensate close to 1007 G. Our exact treatments of three-particle scattering explicitly include the dependence of the interactions on the atomic Zeeman levels. The Feshbach resonance distorts the entire diatomic energy spectrum, causing interferences in both loss phenomena. Our two independent experiments confirm the predicted recombination loss over a range of rate constants that spans four orders of magnitude.

Original language	English
Article number	020702
Pages (from-to)	1-4
Number of pages	4
Journal	Physical Review A - Atomic, Molecular, and Optical Physics
Volume	75
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevA.75.020702
Publication status	Published - 20 Feb 2007
Externally published	Yes

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Smirne, G., Godun, R. M., Cassettari, D., Boyer, V., Foot, C. J., Volz, T., Syassen, N., Dürr, S., Rempe, G., Lee, M. D., Góral, K., & Köhler, T. (2007). Collisional relaxation of Feshbach molecules and three-body recombination in Rb87 Bose-Einstein condensates. Physical Review A - Atomic, Molecular, and Optical Physics, 75(2), 1-4. Article 020702. https://doi.org/10.1103/PhysRevA.75.020702

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abstract = "We predict the resonance-enhanced magnetic field dependence of atom-dimer relaxation and three-body recombination rates in a Rb87 Bose-Einstein condensate close to 1007 G. Our exact treatments of three-particle scattering explicitly include the dependence of the interactions on the atomic Zeeman levels. The Feshbach resonance distorts the entire diatomic energy spectrum, causing interferences in both loss phenomena. Our two independent experiments confirm the predicted recombination loss over a range of rate constants that spans four orders of magnitude.",

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Smirne, G, Godun, RM, Cassettari, D, Boyer, V, Foot, CJ, Volz, T, Syassen, N, Dürr, S, Rempe, G, Lee, MD, Góral, K & Köhler, T 2007, 'Collisional relaxation of Feshbach molecules and three-body recombination in Rb87 Bose-Einstein condensates', Physical Review A - Atomic, Molecular, and Optical Physics, vol. 75, no. 2, 020702, pp. 1-4. https://doi.org/10.1103/PhysRevA.75.020702

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AU - Smirne, G.

AU - Godun, R. M.

AU - Cassettari, D.

AU - Boyer, V.

AU - Foot, C. J.

AU - Volz, T.

AU - Syassen, N.

AU - Dürr, S.

AU - Rempe, G.

AU - Lee, M. D.

AU - Góral, K.

AU - Köhler, T.

PY - 2007/2/20

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N2 - We predict the resonance-enhanced magnetic field dependence of atom-dimer relaxation and three-body recombination rates in a Rb87 Bose-Einstein condensate close to 1007 G. Our exact treatments of three-particle scattering explicitly include the dependence of the interactions on the atomic Zeeman levels. The Feshbach resonance distorts the entire diatomic energy spectrum, causing interferences in both loss phenomena. Our two independent experiments confirm the predicted recombination loss over a range of rate constants that spans four orders of magnitude.

AB - We predict the resonance-enhanced magnetic field dependence of atom-dimer relaxation and three-body recombination rates in a Rb87 Bose-Einstein condensate close to 1007 G. Our exact treatments of three-particle scattering explicitly include the dependence of the interactions on the atomic Zeeman levels. The Feshbach resonance distorts the entire diatomic energy spectrum, causing interferences in both loss phenomena. Our two independent experiments confirm the predicted recombination loss over a range of rate constants that spans four orders of magnitude.

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JF - Physical Review A - Atomic, Molecular, and Optical Physics

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Collisional relaxation of Feshbach molecules and three-body recombination in Rb87 Bose-Einstein condensates

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