Orateur
Prof.
Masahito Ueda
(University of Tokyo)
Description
Abstract: Recent theoretical and experimental efforts to create and understand the Efimov states in a three-component mixture of 6Li are reviewed [1,2]. It is pointed out that the recently observed loss peaks at 602G and 685G [3,4], which are the crossing points of the atom-dimer threshold and the ground and first excited Efimov states, show significant deviations from the universal Efimov theory predictions. The Efimov binding energy, which was observed via radio-frequency association, shows a marked temperature dependence and its temperature-independent part shows significant deviations from nonuniversal theory prediction based on a three-body parameter with a monotonic binding-energy dependence [5,6].
[1] P. Naidon and M. Ueda, Phys. Rev. Lett. 103, 073203 (2009).
[2] P. Naidon and M. Ueda, Comp. Rend. Phys. v. 12, iss. 1, p. 13 (2011).
[3] S. Nakajima, et al., Phys. Rev. Lett. 105, 023201 (2010).
[4] T. Lompe, et al., Phys. Rev. Lett. 105, 103201 (2010).
[5] T. Lompe, et al., Science 330, 940 (2010).
[6] S. Nakajima, et al., Phys. Rev. Lett. 106, 143201 (2011).
Author
Prof.
Masahito Ueda
(University of Tokyo)
