Collisional relaxation of Feshbach molecules and three-body recombination in Rb-87 Bose-Einstein condensates

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

doi:10.1103/PhysRevA.75.020702

Collisional relaxation of Feshbach molecules and three-body recombination in Rb-87 Bose-Einstein condensates

G. Smirne, R. M. Godun, D. Cassettari, V. Boyer, C. J. Foot, T. Volz, N. Syassen, S. Duerr, G. Rempe, M. D. Lee, K. Goral, T. Köhler

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Abstract

We predict the resonance-enhanced magnetic field dependence of atom-dimer relaxation and three-body recombination rates in a Rb-87 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
Number of pages	4
Journal	Physical Review A
Volume	75
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevA.75.020702
Publication status	Published - 2007

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title = "Collisional relaxation of Feshbach molecules and three-body recombination in Rb-87 Bose-Einstein condensates",

abstract = "We predict the resonance-enhanced magnetic field dependence of atom-dimer relaxation and three-body recombination rates in a Rb-87 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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AU - Smirne, G.

AU - Godun, R. M.

AU - Cassettari, D.

AU - Boyer, V.

AU - Foot, C. J.

AU - Volz, T.

AU - Syassen, N.

AU - Duerr, S.

AU - Rempe, G.

AU - Lee, M. D.

AU - Goral, K.

AU - Köhler , T.

PY - 2007

Y1 - 2007

N2 - We predict the resonance-enhanced magnetic field dependence of atom-dimer relaxation and three-body recombination rates in a Rb-87 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 Rb-87 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.

U2 - 10.1103/PhysRevA.75.020702

DO - 10.1103/PhysRevA.75.020702

M3 - Article

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VL - 75

JO - Physical Review A

JF - Physical Review A

IS - 2

M1 - 020702

ER -

Collisional relaxation of Feshbach molecules and three-body recombination in Rb-87 Bose-Einstein condensates

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