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September 27, 2025Chinese Physics Letters

Right-eigenstate-based approach to non-Hermitian superfluidity with two-body loss

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Authors

XLX. L. LiuMLMing LuHLHaiwen Liu

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Overview

Theoretical analysis illustrates how two-body loss affects superfluid stability, suggesting a link between backscattering and fragility.

Key Points

  • The right-eigenstate framework produces smooth solutions in non-Hermitian superfluidity, while the biorthogonal approach fails under moderate dissipation.
  • Lower condensation energy in the right-eigenstate framework indicates greater suitability for capturing essential system features.
  • Backscattering under two-body loss appears to destabilize superfluid states, critical for understanding quantum phase fragility.
  • Strong backscattering effectively destroys the superfluid state, marking a key mechanism in non-Hermitian quantum systems.

Cite This Study

Liu et al. (2025) studied this question.

synapsesocial.com/papers/68d7be5eeebfec0fc52376d5https://doi.org/10.1088/0256-307x/42/11/110706
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