Non-Hermitian bosonic chains with symmetric hopping can host k-local charges for selected k only, providing counterexamples to all-or-nothing integrability and showing the Grabowski-Mathieu 3-local test is not universal.
Takahashi,Thermodynamics of One-Dimensional Solvable Models(Cambridge University Press, Cam- bridge, 1999)
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Stable edge-qubit synchronization and constant asymptotic entanglement in a dissipative XX chain occur if and only if the decoherence-free subspace contains exactly one single-excitation eigenstate.
Transverse confinement in a quasi-1D Bose gas induces an effective three-body interaction that produces a finite positive scattering length for elastic two-cluster scattering, indicating a resonance.
citing papers explorer
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Violating the All-or-Nothing Picture of Local Charges in Non-Hermitian Bosonic Chains
Non-Hermitian bosonic chains with symmetric hopping can host k-local charges for selected k only, providing counterexamples to all-or-nothing integrability and showing the Grabowski-Mathieu 3-local test is not universal.
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Synchronization in a dissipative quantum many-body system
Stable edge-qubit synchronization and constant asymptotic entanglement in a dissipative XX chain occur if and only if the decoherence-free subspace contains exactly one single-excitation eigenstate.
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Resonant two-cluster scattering in a quasi-one-dimensional Bose gas
Transverse confinement in a quasi-1D Bose gas induces an effective three-body interaction that produces a finite positive scattering length for elastic two-cluster scattering, indicating a resonance.