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Article overview
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Realization of a strongly interacting Bose-Fermi mixture from a two-component Fermi gas | Yong-il Shin
; André Schirotzek
; Christian H. Schunck
; Wolfgang Ketterle
; | Date: |
6 May 2008 | Abstract: | We show the emergence of a strongly interacting Bose-Fermi mixture from a
two-component Fermi mixture with population imbalance. By analyzing in situ
density profiles of $^6$Li atoms in the BCS-BEC crossover regime we identify a
critical interaction strength, beyond which all minority atoms pair up with
majority atoms, and form a Bose condensate. This is the regime where the system
can be effectively described as a boson-fermion mixture. We determine the
dimer-fermion and dimer-dimer scattering lengths and beyond-mean-field
contributions. Our study realizes a Gedanken experiment of bosons immersed in a
Fermi sea of one of their constituents, revealing the composite nature of the
bosons. | Source: | arXiv, 0805.0623 | Services: | Forum | Review | PDF | Favorites |
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