Étude de l'effet d'Efimov dans deux états de spin nucléaire du 7Li

Noam Gross; Zav Shotan; Olga Machtey; Servaas Kokkelmans; Lev Khaykovich

doi:10.1016/j.crhy.2010.10.004

Étude de l'effet d'Efimov dans deux états de spin nucléaire du ⁷Li

Translated title of the contribution: Study of Efimov physics in two nuclear-spin sublevels of ⁷Li

Noam Gross, Zav Shotan, Olga Machtey, Servaas Kokkelmans, Lev Khaykovich

Department of Physics

Bar-Ilan University

Research output: Contribution to journal › Short survey › peer-review

Abstract

Efimov physics in two nuclear-spin sublevels of bosonic lithium is studied and it is shown that the positions and widths of recombination minima and Efimov resonances are identical for both states within the experimental errors, which indicate that the short-range physics is nuclear-spin independent. We also find that the Efimov features are universally related across Feshbach resonances. These applied magnetic field which we achieve by characterization of the two broad Feshbach resonances in the different states by means of rf-spectroscopy of weakly bound molecules. By fitting the binding energies numerically with a coupled channels calculation we precisely determine the absolute positions of the Feshbach resonances and the values of the singlet and triplet scattering lengths.

Translated title of the contribution	Study of Efimov physics in two nuclear-spin sublevels of ⁷Li
Original language	French
Pages (from-to)	4-12
Number of pages	9
Journal	Comptes Rendus Physique
Volume	12
Issue number	1
DOIs	https://doi.org/10.1016/j.crhy.2010.10.004
State	Published - Jan 2011

Keywords

Efimov effect
Feshbach resonance
Nuclear spin

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

Access to Document

10.1016/j.crhy.2010.10.004

Cite this

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title = "{\'E}tude de l'effet d'Efimov dans deux {\'e}tats de spin nucl{\'e}aire du 7Li",

abstract = "Efimov physics in two nuclear-spin sublevels of bosonic lithium is studied and it is shown that the positions and widths of recombination minima and Efimov resonances are identical for both states within the experimental errors, which indicate that the short-range physics is nuclear-spin independent. We also find that the Efimov features are universally related across Feshbach resonances. These applied magnetic field which we achieve by characterization of the two broad Feshbach resonances in the different states by means of rf-spectroscopy of weakly bound molecules. By fitting the binding energies numerically with a coupled channels calculation we precisely determine the absolute positions of the Feshbach resonances and the values of the singlet and triplet scattering lengths.",

keywords = "Efimov effect, Feshbach resonance, Nuclear spin",

author = "Noam Gross and Zav Shotan and Olga Machtey and Servaas Kokkelmans and Lev Khaykovich",

note = "Funding Information: This work was supported, in part, by the Israel Science Foundation and by the Netherlands Organization for Scientific Research (NWO). N.G. is supported by the Adams Fellowship Program of the Israel Academy of Sciences and Humanities.",

year = "2011",

month = jan,

doi = "10.1016/j.crhy.2010.10.004",

language = "الفرنسيّة",

volume = "12",

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journal = "Comptes Rendus Physique",

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T1 - Étude de l'effet d'Efimov dans deux états de spin nucléaire du 7Li

AU - Gross, Noam

AU - Shotan, Zav

AU - Machtey, Olga

AU - Kokkelmans, Servaas

AU - Khaykovich, Lev

N1 - Funding Information: This work was supported, in part, by the Israel Science Foundation and by the Netherlands Organization for Scientific Research (NWO). N.G. is supported by the Adams Fellowship Program of the Israel Academy of Sciences and Humanities.

PY - 2011/1

Y1 - 2011/1

N2 - Efimov physics in two nuclear-spin sublevels of bosonic lithium is studied and it is shown that the positions and widths of recombination minima and Efimov resonances are identical for both states within the experimental errors, which indicate that the short-range physics is nuclear-spin independent. We also find that the Efimov features are universally related across Feshbach resonances. These applied magnetic field which we achieve by characterization of the two broad Feshbach resonances in the different states by means of rf-spectroscopy of weakly bound molecules. By fitting the binding energies numerically with a coupled channels calculation we precisely determine the absolute positions of the Feshbach resonances and the values of the singlet and triplet scattering lengths.

AB - Efimov physics in two nuclear-spin sublevels of bosonic lithium is studied and it is shown that the positions and widths of recombination minima and Efimov resonances are identical for both states within the experimental errors, which indicate that the short-range physics is nuclear-spin independent. We also find that the Efimov features are universally related across Feshbach resonances. These applied magnetic field which we achieve by characterization of the two broad Feshbach resonances in the different states by means of rf-spectroscopy of weakly bound molecules. By fitting the binding energies numerically with a coupled channels calculation we precisely determine the absolute positions of the Feshbach resonances and the values of the singlet and triplet scattering lengths.

KW - Efimov effect

KW - Feshbach resonance

KW - Nuclear spin

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M3 - عرض مختصر

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