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Quantum Thermodynamics

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

arXiv
Authors: Yuhan Lu, Lihong Zhou, Yongping Zhang

Year

2026

Paper ID

18108

Status

Preprint

Abstract Read

~2 min

Abstract Words

95

Citations

N/A

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.

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  • 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...

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References & Citation Signals

[1] DOI https://doi.org/arXiv:2602.24006 [2] arXiv https://arxiv.org/abs/2602.24006 [3] Publisher https://arxiv.org/abs/2602.24006

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