Fulde-Ferrell superfluids in an asymmetric three-component Fermi Gas

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Hauptverfasser: Lu, Yuhan, Zhou, Lihong, Zhang, Yongping
Format: Preprint
Veröffentlicht: 2026
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author Lu, Yuhan
Zhou, Lihong
Zhang, Yongping
author_facet Lu, Yuhan
Zhou, Lihong
Zhang, Yongping
contents 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.
format Preprint
id arxiv_https___arxiv_org_abs_2602_24006
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Fulde-Ferrell superfluids in an asymmetric three-component Fermi Gas
Lu, Yuhan
Zhou, Lihong
Zhang, Yongping
Quantum Gases
Quantum Physics
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.
title Fulde-Ferrell superfluids in an asymmetric three-component Fermi Gas
topic Quantum Gases
Quantum Physics
url https://arxiv.org/abs/2602.24006