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Pairing patterns in polarized unitary Fermi gases above the superfluid transition

We nonperturbatively study pairing in the high-temperature regime of polarized unitary two-component Fermi gases by extracting the pair-momentum distribution and shot-noise correlations. Whereas the pair-momentum distribution allows us to analyze the propagation of pairs composed of one spin-up and...

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Bibliographische Detailangaben
Hauptverfasser: Attanasio, Felipe (VerfasserIn) , Rammelmüller, Lukas (VerfasserIn) , Drut, Joaquín E. (VerfasserIn) , Braun, Jens (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: 17 June 2022
In: Physical review
Year: 2022, Jahrgang: 105, Heft: 6, Pages: 1-6
ISSN:2469-9934
DOI:10.1103/PhysRevA.105.063317
Online-Zugang:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevA.105.063317
Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevA.105.063317
Volltext
Verfasserangaben:Felipe Attanasio, Lukas Rammelmüller, Joaquín E. Drut, and Jens Braun
Beschreibung
Zusammenfassung:We nonperturbatively study pairing in the high-temperature regime of polarized unitary two-component Fermi gases by extracting the pair-momentum distribution and shot-noise correlations. Whereas the pair-momentum distribution allows us to analyze the propagation of pairs composed of one spin-up and one spin-down fermion, shot-noise correlations provide us with a tomographic insight into pairing correlations around the Fermi surfaces associated with the two species. Assuming that the dominant pairing patterns right above the superfluid transition also govern the formation of condensates in the low-temperature regime, our analysis suggests that the superfluid ground state is homogeneous and of the Bardeen-Cooper-Schrieffer type over a wide range of polarizations.
Beschreibung:Gesehen am 24.08.2022
Beschreibung:Online Resource
ISSN:2469-9934
DOI:10.1103/PhysRevA.105.063317

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