Author

R. Jafari

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Preprint Sep 2026

Amplified Memory and Finite-Time Regularity in Driven Non-Hermitian Systems

We study the roles of broken spectra and exceptional points in finite-time driven non-Hermitian fermionic dynamics. We compute the Nambu biorthogonal correlation matrix for this purpose. The imbalanced-pairing Kitaev chain serves as our concrete realization. Transient passage through a broken-spectrum region amplifies...

H. Yavartanoo, R. Jafari, A. Akbari · 0 citations

Preprint Jul 2026

Dynamical Quantum Phase Transitions in a Pseudo-Hermitian Hamiltonian: The Imbalanced-Pairing Kitaev Model

Although parity-time (PT)-symmetric Hamiltonians are often associated with real energy spectra, PT symmetry is neither a sufficient nor a necessary condition for a real spectrum. More generally, real spectra are associated with the broader class of pseudo-Hermitian Hamiltonians, of which PT-symmetric Hamiltonians const...

R. Jafari, A. Akbari, Shukhrat N. Mardonov et al. · 2 citations