3 citations · 3 across the 2 of their papers we have counts for
7 papers
Experimental observation of PT symmetry breaking near divergent exceptional points
M. Sakhdari, M. Hajizadegan, Q. Zhong +3
Standard exceptional points (EPs) are non-Hermitian degeneracies that occur in open systems. At an EP, the Taylor series expansion becomes singular and fails to converge -- a featu…
Hierarchical construction of higher-order exceptional points
Q. Zhong, J. Kou, S. K. Ozdemir +1
The realization of higher-order exceptional points (HOEPs) can lead to orders of magnitude enhancement in light-matter interactions beyond the current fundamental limits. Unfortuna…
Control of spontaneous emission dynamics in microcavities with chiral exceptional surfaces
Q. Zhong, A. Hashemi, S. K. Ozdemir +1
We investigate spontaneous emission from a quantum emitter located within the mode volume of a microring resonator that features chiral exceptional points. We show that this config…
Coherent virtual absorption of light in microring resonators
Q. Zhong, L. Simonson, T. Kottos +1
Light trapping and radiation process from linear reciprocal photonic resonators is one of the fundamental processes in optical science and engineering. Recently, the concept of coh…
Reply to "Comment on `Winding around non-Hermitian singularities' by Zhong et al., Nat. Commun. 9, 4808 (2018)"
Q. Zhong, M. Khajavikhan, D. N. Christodoulides +1
A comment has been recently posted on the arXiv (arXiv:1902.07504) that discuss our recent work on encircling multiple exceptional points in Nat. Commun. 9, 4808 (2018). In that co…
Sensing with exceptional surfaces: combining sensitivity with robustness
Q. Zhong, J. Ren, M. Khajavikhan +3
Exceptional points (EPs) are singularities that arise in non-Hermitian physics. Current research efforts focus only on systems supporting isolated EPs characterized by increased se…