Confinement-induced Efimov resonances in Fermi-Fermi mixtures
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Nishida-2009-Confinement-induced.pdf
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Author(s)
Nishida, Yusuke
Tan, Shina
Date Issued
June 2009
Journal
Physical Review A
Publisher
American Physical Society
Citation
Nishida, Yusuke , and Shina Tan. “Confinement-induced Efimov resonances in Fermi-Fermi mixtures.” Physical Review A 79.6 (2009): 060701. (C) 2010 The American Physical Society.
Version
Final published version
Abstract
A Fermi-Fermi mixture of 40K and 6Li does not exhibit the Efimov effect in a free space, but the Efimov effect can be induced by confining only 40K in one dimension. Here the Efimov’s three-body parameter is controlled by the confinement length. We show that the three-body recombination rate in such a system in the dilute limit has a characteristic logarithmic-periodic dependence on the effective scattering length with the scaling factor 22.0 and can be expressed by formulas similar to those for identical bosons in three dimensions. The ultracold mixture of 40K and 6Li in the one-dimensional–three-dimensional mixed dimensions is thus a promising candidate to observe the Efimov physics in fermions.
MIT Department
Massachusetts Institute of Technology. Center for Theoretical Physics
Massachusetts Institute of Technology. Department of Physics
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DOI of Published Version
http://dx.doi.org/10.1103/PhysRevA.79.060701
