7 papers
Optical Tautochrone and Squeezing Dynamics in Nonuniform Lattices
Ioannis Kiorpelidis, Matthias Heinrich, Alexander Szameit +2
We present exact analogies between the tautochrone problem of classical mechanics and the squeezed states of quantum optics to optical lattices. Both phenomena emerge in the same p…
Phase Transitions and Topological Protection in Anyonic-PT-Symmetric Lattices
Ruiying Zhang, Ziteng Wang, Daohong Song +3
Parity-time (PT) symmetry and anti-PT symmetry have attracted extensive interest for their non-Hermitian spectral properties, particularly the emergence of purely real and imaginar…
Defect-driven incoherent skin localization
Emmanouil T. Kokkinakis, Konstantinos G. Makris, Eleftherios N. Economou
The process of dephasing during wave evolution has traditionally been viewed as an obstacle to localization, leading to diffusion even in strongly disordered Hermitian lattices. In…
Self-trapping and skin solitons in two-dimensional non-Hermitian lattices
Emmanouil T. Kokkinakis, Ioannis Komis, Konstantinos G. Makris
Two-dimensional non-Hermitian photonic lattices with asymmetric couplings offer rich possibilities for controlling wave localization, through the emergence of the non-Hermitian ski…
Scaling of pseudospectra in exponentially sensitive lattices
Ioannis Kiorpelidis, Konstantinos G. Makris
One of the important features of non-Hermitian Hamiltonians is the existence of a unique type of singularities, the so-called exceptional points (EPs). When the corresponding syste…
Dephasing-induced jumps in non-Hermitian disordered lattices
Emmanouil T. Kokkinakis, Konstantinos G. Makris, Eleftherios N. Economou
Changes in the wavefunction's phase during propagation in a random Hermitian lattice, a process known as dephasing, results in diffusion rather than Anderson localization. However,…