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quant-ph2026
Exceptional Points revealed by the integrated imaginary scattering eigenphase
J. Colín-Gálvez, V. Domínguez-Rocha, J. E. Toral-Zavaleta
We propose and analytically demonstrate that the eigenphases of the scattering matrix provide direct, phase-sensitive signatures of EPs in open PT-symmetric systems. Using a 1D PT-…
quant-ph2023
The rise and fall of the amplitude, and phase, around Exceptional Points: a Scattering matrix approach
J. Colín-Gálvez, E. Castaño, G. Báez +1
We analyze the behavior of a non-Hermitian opened one-dimensional quantum system with symmetry. This system is built by a dimer, with balanced gains and losses descr…