Superfluid phases of fermions with hybridized s and p orbitals

Shaoyu Yin, Jildou E. Baarsma, Miikka Heikkinen, Jani-Petri Martikainen, P. Törmä

Tutkimustuotos: LehtiartikkeliArticleScientificvertaisarvioitu

10 Sitaatiot (Scopus)
475 Lataukset (Pure)

Abstrakti

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.

AlkuperäiskieliEnglanti
Artikkeli053616
Sivut1-12
Sivumäärä12
JulkaisuPhysical Review A
Vuosikerta92
Numero5
DOI - pysyväislinkit
TilaJulkaistu - 17 marraskuuta 2015
OKM-julkaisutyyppiA1 Julkaistu artikkeli, soviteltu

Tutkimusalat

  • Multiband Superfluidity
  • Optical lattices
  • Ultracold atoms

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