331 citations · 1.1k across the 9 of their papers we have counts for
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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…
Statistical PT-symmetric lasing in an optical fiber network
Ali K. Jahromi, Absar U. Hassan, Demetrios N. Christodoulides +1
PT-symmetry in optics is a condition whereby the real and imaginary parts of the refractive index across a photonic structure are deliberately balanced. This balance can lead to a…
Ultrasensitive micro-scale parity-time-symmetric ring laser gyroscope
Jinhan Ren, Hossein Hodaei, Gal Harari +5
We propose a new scheme for ultra-sensitive laser gyroscopes that utilizes the physics of exceptional points. By exploiting the properties of such non-Hermitian degeneracies, we sh…