Abstract
We study many-body contributions to the effective interaction between fermions in a three-component Fermi mixture. We find that effective interactions induced by the third component can lead to a phase diagram different from that predicted if interactions with the third component are neglected. As a result, in a confining potential a superfluid shell structure can arise even for equal populations of the components. We also find a critical temperature for the BCS transition in a Li6 mixture which can deviate strongly from the one in a weakly interacting two-component system.
Original language | English |
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Article number | 260403 |
Pages (from-to) | 1-4 |
Number of pages | 4 |
Journal | Physical Review Letters |
Volume | 103 |
Issue number | 26 |
DOIs | |
Publication status | Published - 2009 |
MoE publication type | A1 Journal article-refereed |
Keywords
- fermi gases
- induced interactions
- quantum gases
- superfluidity