Abstrakti
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.
Alkuperäiskieli | Englanti |
---|---|
Artikkeli | 260403 |
Sivut | 1-4 |
Sivumäärä | 4 |
Julkaisu | Physical Review Letters |
Vuosikerta | 103 |
Numero | 26 |
DOI - pysyväislinkit | |
Tila | Julkaistu - 2009 |
OKM-julkaisutyyppi | A1 Julkaistu artikkeli, soviteltu |
Tutkimusalat
- fermi gases
- induced interactions
- quantum gases
- superfluidity