IDEAS home Printed from https://ideas.repec.org/a/nat/natcom/v5y2014i1d10.1038_ncomms6064.html
   My bibliography  Save this article

Chiral superfluidity with p-wave symmetry from an interacting s-wave atomic Fermi gas

Author

Listed:
  • Bo Liu

    (University of Pittsburgh)

  • Xiaopeng Li

    (University of Pittsburgh
    Condensed Matter Theory Center and Joint Quantum Institute, University of Maryland)

  • Biao Wu

    (International Center for Quantum Materials, School of Physics, Peking University
    Collaborative Innovation Center of Quantum Matter)

  • W Vincent Liu

    (University of Pittsburgh
    Zhejiang University of Technology)

Abstract

Chiral p-wave superfluids are fascinating topological quantum states of matter that have been found in the liquid 3He-A phase and arguably in the electronic Sr2RuO4 superconductor. They are fundamentally related to the fractional 5/2 quantum Hall state, which supports fractional exotic excitations. Past studies show that they require spin-triplet pairing of fermions by p-wave interaction. Here we report that a p-wave chiral superfluid state can arise from spin-singlet pairing for an s-wave interacting atomic Fermi gas in an optical lattice. This p-wave state is conceptually distinct from all previous conventional p-wave states as it is for the centre-of-mass motion, instead of the relative motion. It leads to spontaneous generation of angular momentum, finite Chern numbers and topologically protected chiral fermionic zero modes bounded to domain walls, all occuring at a higher critical temperature in relative scales. Signature quantities are predicted for the cold atom experimental condition.

Suggested Citation

  • Bo Liu & Xiaopeng Li & Biao Wu & W Vincent Liu, 2014. "Chiral superfluidity with p-wave symmetry from an interacting s-wave atomic Fermi gas," Nature Communications, Nature, vol. 5(1), pages 1-6, December.
    • Handle: RePEc:nat:natcom:v:5:y:2014:i:1:d:10.1038_ncomms6064
    DOI: 10.1038/ncomms6064
    as

    Download full text from publisher

    File URL: https://www.nature.com/articles/ncomms6064
    File Function: Abstract
    Download Restriction: no
    File URL: https://libkey.io/10.1038/ncomms6064?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:nat:natcom:v:5:y:2014:i:1:d:10.1038_ncomms6064. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Sonal Shukla or Springer Nature Abstracting and Indexing (email available below). General contact details of provider: http://www.nature.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.