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Exceptional points in optics and photonics

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Latent symmetry in a minimal non-Hermitian trimer

quant-ph · 2026-03-16 · unverdicted · novelty 6.0

A cospectral non-Hermitian trimer with nonreciprocal couplings admits exact dark-bright decomposition under an algebraic matching condition, with the bright sector becoming PT-symmetric and hosting an embedded second-order exceptional point at criticality.

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  • Latent symmetry in a minimal non-Hermitian trimer quant-ph · 2026-03-16 · unverdicted · none · ref 33

    A cospectral non-Hermitian trimer with nonreciprocal couplings admits exact dark-bright decomposition under an algebraic matching condition, with the bright sector becoming PT-symmetric and hosting an embedded second-order exceptional point at criticality.