Superfluid phases of fermions with hybridized s and p orbitals
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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Date
2015-11-17
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Language
en
Pages
12
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Physical Review A, Volume 92, issue 5, pp. 1-12
Abstract
We explore the superfluid phases of a two-component Fermi mixture with hybridized orbitals in optical lattices. We show that there exists a general mapping of this system to the Lieb lattice. By using simple multiband models with hopping between s- and p-orbital states, we show that superfluid order parameters can have a π-phase difference between lattice sites, which is distinct from the case with hopping between s orbitals. If the population imbalance between the two spin species is tuned, the superfluid phase may evolve through various phases due to the interplay between hopping, interactions, and imbalance. We show that the rich behavior is observable in experimentally realizable systems.Description
| openaire: EC/FP7/340748/EU//CODE
Keywords
Multiband Superfluidity, Optical lattices, Ultracold atoms
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Citation
Yin, S, Baarsma, J E, Heikkinen, M, Martikainen, J-P & Törmä, P 2015, ' Superfluid phases of fermions with hybridized s and p orbitals ', Physical Review A, vol. 92, no. 5, 053616, pp. 1-12 . https://doi.org/10.1103/PhysRevA.92.053616