Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

arXiv:1204.0571 · The European Physical Journal B

Magnetic impurities in a two-dimensional superfluid Fermi gas with spin-orbit coupling

Zhongbo Yan, Xiao‐Song Yang, Lihua Sun, Shaolong Wan

Published Dec 1, 2012• 4 citations
arXivHTMLPDF
DOI
10.1140/epjb/e2012-30789-2

Related papers

Impurity in a Fermi gas under non-Hermitian spin–orbit coupling

Jia-Zheng Sun

arXiv:2010.12767•The European Physical Journal D•Feb 1, 2021•4 citations

Effect of anisotropic spin-orbit coupling on condensation and superfluidity of a two-dimensional Fermi gases

Kezhao Zhou

arXiv:2306.15882•Indian Journal of Physics•Mar 4, 2024•0 citations

Impurity probe of topological superfluids in one-dimensional spin-orbit-coupled atomic Fermi gases

Xia-Ji Liu

We investigate theoretically nonmagnetic impurity scattering in a one-dimensional atomic topological superfluid in harmonic traps by solving self-consistently the microscopic Bogoliubov-de Gennes equation. In sharp contrast to topologically trivial Bardeen-Cooper-Schrieffer $s$-wave superfluid, topological superfluid can host a midgap state that is bound to localized nonmagnetic impurity. For strong impurity scattering, the bound state becomes universal, with nearly zero energy and a wave function that closely follows the symmetry of that of Majorana fermions. We propose that the observation of such a universal bound state could be useful evidence for characterizing the topological nature of topological superfluids. Our prediction is applicable to an ultracold, resonantly interacting Fermi gas of ${}^{40}$K atoms with spin-orbit coupling confined in a two-dimensional optical lattice.

arXiv:1301.4619•Physical Review A•Jan 18, 2013•22 citations

Superfluid Properties of a Spin-orbit Coupled Fermi Gas

Juan Yao, Shan–Shan Ding, Zhenhua Yu +1 more

WORLD SCIENTIFIC eBooks•Jul 25, 2018•0 citations

FERMI GASES WITH SYNTHETIC SPIN–ORBIT COUPLING

Jing Zhang, Hui Hu, Xia-Ji Liu +1 more

We briefly review recent progress on ultracold atomic Fermi gases with different types of synthetic spin-orbit coupling, including the one-dimensional (1D) equal weight Rashba-Dresselhaus and two-dimensional (2D) Rasbha spin-orbit couplings. Theoretically, we show how the single-body, two-body and many-body properties of Fermi gases are dramatically changed by spin-orbit coupling. In particular, the interplay between spin-orbit coupling and interatomic interaction may lead to several long-sought exotic superfluid phases at low temperatures, such as anisotropic superfluid, topological superfluid and inhomogeneous superfluid. Experimentally, only the first type - equal weight combination of Rasbha and Dresselhaus spin-orbit couplings - has been realized very recently using a two-photon Raman process. We show how to characterize a normal spin-orbit coupled atomic Fermi gas in both non-interacting and strongly-interacting limits, using particularly momentum-resolved radio-frequency spectroscopy. The experimental demonstration of a strongly-interacting spin-orbit coupled Fermi gas opens a promising way to observe various exotic superfluid phases in the near future.

arXiv:1411.3043•Annual review of cold atoms and molecules•Mar 31, 2014•64 citations

Ground state properties of a two-dimensional Fermi superfluid with anisotropic spin–orbit coupling

Kezhao Zhou, Zhang Zhi-dong

Journal of Physics and Chemistry of Solids•Aug 19, 2017•2 citations
We investigate theoretically nonmagnetic impurity scattering in a one-dimensional atomic topological superfluid in harmonic traps by solving self-consistently the microscopic Bogoliubov-de Gennes equation. In sharp contrast to topologically trivial Bardeen-Cooper-Schrieffer sss-wave superfluid, topological superfluid can host a midgap state that is bound to localized nonmagnetic impurity. For strong impurity scattering, the bound state becomes universal, with nearly zero energy and a wave function that closely follows the symmetry of that of Majorana fermions. We propose that the observation of such a universal bound state could be useful evidence for characterizing the topological nature of topological superfluids. Our prediction is applicable to an ultracold, resonantly interacting Fermi gas of 40{}^{40}40K atoms with spin-orbit coupling confined in a two-dimensional optical lattice.
We briefly review recent progress on ultracold atomic Fermi gases with different types of synthetic spin-orbit coupling, including the one-dimensional (1D) equal weight Rashba-Dresselhaus and two-dimensional (2D) Rasbha spin-orbit couplings. Theoretically, we show how the single-body, two-body and many-body properties of Fermi gases are dramatically changed by spin-orbit coupling. In particular, the interplay between spin-orbit coupling and interatomic interaction may lead to several long-sought exotic superfluid phases at low temperatures, such as anisotropic superfluid, topological superfluid and inhomogeneous superfluid. Experimentally, only the first type - equal weight combination of Rasbha and Dresselhaus spin-orbit couplings - has been realized very recently using a two-photon Raman process. We show how to characterize a normal spin-orbit coupled atomic Fermi gas in both non-interacting and strongly-interacting limits, using particularly momentum-resolved radio-frequency spectroscopy. The experimental demonstration of a strongly-interacting spin-orbit coupled Fermi gas opens a promising way to observe various exotic superfluid phases in the near future.