331 citations · 420 across the 2 of their papers we have counts for
3 papers
Chiral state-conversion without encircling an exceptional point
Absar U. Hassan, Gisela L. Galmiche, Gal Harari +4
Dynamically varying system parameters along a path enclosing an exceptional point is known to lead to chiral mode conversion. But is it necessary to include this non-Hermitian dege…
Dynamically encircling exceptional points: Exact evolution and polarization state conversion
Absar U. Hassan, Bo Zhen, Marin Soljacic +2
We show that a two-level non-Hermitian Hamiltonian with constant off-diagonal exchange elements can be analyzed exactly when the underlying exceptional point is perfectly encircled…
Integrable nonlinear parity-time symmetric optical oscillator
Absar U. Hassan, Hossein Hodaei, Mohammad-Ali Miri +2
The nonlinear dynamics of a balanced parity-time symmetric optical microring arrangement are analytically investigated. By considering gain and loss saturation effects, the pertine…