69 citations · 467 across the 26 of their papers we have counts for
26 papers
Robustness of perfect transmission resonances to asymmetric perturbation
Ioannis Kiorpelidis, Panayotis Kalozoumis, Georgios Theocharis +3
We investigate the impact of asymmetric perturbations on the perfect transmission resonances (PTRs) of one-dimensional finite periodic systems. With no perturbations, the scatterin…
Topological edge-states of the PT-symmetric Su-Schrieffer-Heeger model: An effective two-state description
A. F. Tzortzakakis, A. Katsaris, N. E. Palaiodimopoulos +4
We consider the non-Hermitian, parity-time (PT) symmetric extensions of the one-dimensional Su-Schrieffer-Heeger (SSH) model in the topological non-trivial configuration. We study…
Self-organized PT-symmetry of exciton-polariton condensate in a double-well potential
Panayotis A. Kalozoumis, David Petrosyan
We investigate the dynamics and stationary states of a semiconductor exciton-polariton condensate in a double well potential. We find that upon the population build up of the polar…
Generalized Continuity Equations for Schrödinger and Dirac Equations
A. Katsaris, P. A. Kalozoumis, F. K. Diakonos
The concept of the generalized continuity equation (GCE) was recently introduced in [J. Phys. A: Math. and Theor. {\bf 52}, 1552034 (2019)], and was derived in the context of i…
Coherent population oscillations and an effective spin-exchange interaction in a symmetric polariton mixture
P. A. Kalozoumis, G. M. Nikolopoulos, D. Petrosyan
We study a two-species mixture of exciton-polaritons with self- and cross-interaction nonlinearities in a double well structure, in the presence of relaxation and continuous pumpin…
Open and closed spin chains as multiprocessor wires: optimal engineering and reachability
N. E. Palaiodimopoulos, I. Brouzos, N. Georgoulea +2
We consider the perfect transfer of a state between arbitrary nodes of one-dimensional spin-1/2 chain with optimally engineered couplings. Motivated by the fact that such a system…