Superfluidity near phase separation in Bose-Fermi mixtures

We study the transition to fermion pair superfluidity in a mixture of interacting bosonic and fermionic atoms. The fermion interaction induced by the bosons and the dynamical screening of the condensate phonons due to fermions are included using the nonperturbative Hamiltonian flow equations. We det...

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Hauptverfasser: Enss, Tilman (VerfasserIn) , Zwerger, Wilhelm (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: 09 January 2009
In: The European physical journal. B, Condensed matter and complex systems
Year: 2009, Jahrgang: 68, Heft: 3, Pages: 383-389
ISSN:1434-6036
DOI:10.1140/epjb/e2009-00005-y
Online-Zugang:Verlag, Volltext: http://dx.doi.org/10.1140/epjb/e2009-00005-y
Verlag, Volltext: https://link.springer.com/article/10.1140/epjb/e2009-00005-y
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Verfasserangaben:T. Enss and W. Zwerger
Beschreibung
Zusammenfassung:We study the transition to fermion pair superfluidity in a mixture of interacting bosonic and fermionic atoms. The fermion interaction induced by the bosons and the dynamical screening of the condensate phonons due to fermions are included using the nonperturbative Hamiltonian flow equations. We determine the bosonic spectrum near the transition towards phase separation and find that the superfluid transition temperature may be increased substantially due to phonon damping.
Beschreibung:Gesehen am 23.11.2017
Beschreibung:Online Resource
ISSN:1434-6036
DOI:10.1140/epjb/e2009-00005-y