Closed-form energy spectrum obtained for PT-symmetric diatomic delta-potential superlattices, with topological states shown to vanish at critical imaginary amplitudes coinciding with PT-symmetry breaking points.
Tunneling time in coupled-channel systems
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In present work, we present a couple-channel formalism for the description of tunneling time of a quantum particle through a composite compound with multiple energy levels or a complex structure that can be reduced to a quasi-one-dimensional multiple-channel system.
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2025 1verdicts
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Characteristic determinant approach to the spectrum of one-dimensional $\mathcal{P}\mathcal{T}$-symmetric systems
Closed-form energy spectrum obtained for PT-symmetric diatomic delta-potential superlattices, with topological states shown to vanish at critical imaginary amplitudes coinciding with PT-symmetry breaking points.