Physical review letters
Spin-Depairing-Induced Exceptional Fermionic Superfluidity.
Soma Takemori, Kazuki Yamamoto, Akihisa Koga
Published: 202510.1103/ntjf-zb2v
Abstract
We investigate the non-Hermitian (NH) attractive Hubbard model with spin depairing, which is a spin-resolved asymmetric hopping that nonreciprocally operates spins in the opposite direction. We find that spin depairing stabilizes a superfluid state u…
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