3 papers
cond-mat.mes-hall2026
Scattering matrix elements and energy spectrum of one-dimensional hybrid PT-symmetric finite systems
Vladimir Gasparian, Esther Jódar, Antonio Pérez-Garrido
In this work, we provide a complete description of the scattering matrix elements and electron energy spectrum in one dimensional PT-symmetric hybrid finite systems, using the char…
cond-mat.mes-hall2025
Characteristic determinant approach to the spectrum of one-dimensional -symmetric systems
Vladimir Gasparian, Peng Guo, Antonio Pérez Garrido +1
We obtain a closed form expression for the energy spectrum of -symmetric superlattice systems with complex potentials of periodic sets of two -potential…
cond-mat.other2024
Tunneling time in coupled-channel systems
Peng Guo, Vladimir Gasparian, Antonio Pérez-Garrido +1
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 com…