Derives that ground-state overlap dominance after quenches requires the initial and final Bloch vectors to have positive dot product in every momentum sector, disproving the phase-based conjecture with explicit Kitaev-chain counterexamples.
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Lossy defects in non-Hermitian photonic crystals induce topological singularities that enable high quality factor gain enhancements.
Momentum-space entanglement entropy reaches ln 2 at DQPTs via exact degeneracy p=1/2 in the post-quench eigenbasis, providing a time-independent diagnostic.
Quantum contact processes on topological lattices confine excitations to protected subspaces and enable on-demand quantized spreading via topological pumps, with dynamics mapping to a single-particle model that encodes topological properties.
In the non-Hermitian SSH chain with AAH disorder, a competition regime shows reentrant partial delocalization, a modified localization boundary λ_c(δ)=2√(v_eff w), unwinding of spectral loops, and entanglement suppression by skin effect.
Critical points between obstructed atomic insulators in (2+1)D can realize stable QED3 when microscopic lattice symmetries suppress monopoles.
A gain-loss modulated non-Hermitian reservoir between mirror-symmetric systems can exhibit complementary Lucas sequences in linearly localized edge states and a constant-intensity mode.
citing papers explorer
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Exact Criterion for Ground-State Overlap Dominance after Quantum Quenches
Derives that ground-state overlap dominance after quenches requires the initial and final Bloch vectors to have positive dot product in every momentum sector, disproving the phase-based conjecture with explicit Kitaev-chain counterexamples.
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Loss-driven gain enhancements driven by topological singularities in non-Hermitian photonic crystals defects
Lossy defects in non-Hermitian photonic crystals induce topological singularities that enable high quality factor gain enhancements.
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Critical Entanglement Dynamics at Dynamical Quantum Phase Transitions
Momentum-space entanglement entropy reaches ln 2 at DQPTs via exact degeneracy p=1/2 in the post-quench eigenbasis, providing a time-independent diagnostic.
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Quantum Contact Processes on a Topological Lattice
Quantum contact processes on topological lattices confine excitations to protected subspaces and enable on-demand quantized spreading via topological pumps, with dynamics mapping to a single-particle model that encodes topological properties.
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Competing skin effect and quasiperiodic localization in the non-Hermitian Su-Schrieffer-Heeger chain: Reentrant delocalization, spectral topology destruction, and entanglement suppression
In the non-Hermitian SSH chain with AAH disorder, a competition regime shows reentrant partial delocalization, a modified localization boundary λ_c(δ)=2√(v_eff w), unwinding of spectral loops, and entanglement suppression by skin effect.
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When Wannier centers jump: Critical points between atomic insulating phases
Critical points between obstructed atomic insulators in (2+1)D can realize stable QED3 when microscopic lattice symmetries suppress monopoles.
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Observing complementary Lucas sequences using non-Hermitian zero modes
A gain-loss modulated non-Hermitian reservoir between mirror-symmetric systems can exhibit complementary Lucas sequences in linearly localized edge states and a constant-intensity mode.