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Synthetic nuclear Skyrme matter in imbalanced Fermi superfluids with a multicomponent order parameter
KTH, School of Engineering Sciences (SCI), Physics.
KTH, School of Engineering Sciences (SCI), Physics.ORCID iD: 0000-0002-3577-7966
KTH, School of Engineering Sciences (SCI), Physics.ORCID iD: 0000-0001-7593-4543
2020 (English)In: Physical Review A: covering atomic, molecular, and optical physics and quantum information, ISSN 2469-9926, E-ISSN 2469-9934, Vol. 101, no 1, article id 013614Article in journal (Refereed) Published
Abstract [en]

Cooper-pair formation in a system of imbalanced fermions leads to the well-studied Fulde-Ferrell or Larkin-Ovchinnikov superfluid state. In the former case the system forms spontaneous phase gradients while in the latter case it forms a stripelike or a crystal-like density gradient. We show that in multicomponent imbalanced mixtures, the superfluid states can be very different from the Fulde-Ferrell-Larkin-Ovchinnikov states. The system generates gradients in both densities and phases by forming three-dimensional vortex-antivortex lattices or lattices of linked vortex loops. The solutions share some properties with the ostensibly unrelated Skyrme model of densely packed baryons and can be viewed as synthetic realization of nuclear Skyrme matter.

Place, publisher, year, edition, pages
AMER PHYSICAL SOC , 2020. Vol. 101, no 1, article id 013614
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-267161DOI: 10.1103/PhysRevA.101.013614ISI: 000506842800018Scopus ID: 2-s2.0-85078101778OAI: oai:DiVA.org:kth-267161DiVA, id: diva2:1391631
Note

QC 20200205

Available from: 2020-02-05 Created: 2020-02-05 Last updated: 2020-02-05Bibliographically approved

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Samoilenka, AlbertRybakov, Filipp N.Babaev, Egor
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