Fulde-Ferrell superfluids in an asymmetric three-component Fermi Gas
Abstract
An asymmetric three-component Fermi gas, featuring Raman-induced spin-orbit coupling between the first and second components and contact interaction only between the first and third components, introduces both spin-orbit coupling and population imbalance-two mechanisms known to stabilize the Fulde-Ferrell superfluids.We systematically study Fulde-Ferrell superfluids in an asymmetric three-component Fermi gas by finding the global minima of the thermodynamic potential. We reveal a new class of composite Fulde-Ferrell superfluids that emerges when strong spin-orbit coupling generates a double-well structure in momentum space within the lower spin-orbit-coupled band. The key features of these composite superfluids are identified.
Cite
@article{arxiv.2602.24006,
title = {Fulde-Ferrell superfluids in an asymmetric three-component Fermi Gas},
author = {Yuhan Lu and Lihong Zhou and Yongping Zhang},
journal= {arXiv preprint arXiv:2602.24006},
year = {2026}
}
Comments
7 pages, 3 figures