scholarly journals COALESCENCE OF TWO EXCEPTIONAL POINTS IN THE ANTI-HERMITIAN 3-LEVEL PAIRING MODEL

2009 ◽  
Vol 18 (10) ◽  
pp. 2030-2034
Author(s):  
J. DUKELSKY ◽  
J. OKOŁOWICZ ◽  
M. PŁOSZAJCZAK
Keyword(s):  
Higher Order ◽  
Gaudin Model ◽  
Exceptional Points ◽  
Pairing Model

The formation of a higher-order singularity by the coalescence of two exceptional points is studied in the anti-hermitian limit of the complex-extended 3-level Richardson-Gaudin model.

On-chip high sensitivity rotation sensing based on higher-order exceptional points

2019 ◽  
Vol 36 (9) ◽  
pp. 2618
Author(s):  
Shuo Jiang ◽  
Xiaoyang Chang ◽  
Wenxiu Li ◽  
Peng Han ◽  
Yang Zhou ◽  
...  
Keyword(s):  
High Sensitivity ◽  
Higher Order ◽  
Exceptional Points ◽  
Rotation Sensing ◽  
On Chip

scholarly journals Observation of higher-order exceptional points in a non-local acoustic metagrating

2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Xinsheng Fang ◽  
Nikhil J R K Gerard ◽  
Zhiling Zhou ◽  
Hua Ding ◽  
Nengyin Wang ◽  
...  
Keyword(s):  
Free Space ◽  
Higher Order ◽  
Exceptional Points ◽  
Enhanced Sensitivity ◽  
Topological Features ◽  
Simultaneous Control ◽  
Multiple Orders ◽  
Fundamental Research ◽  
Non Local ◽  
Space Wave

AbstractHigher-order exceptional points have attracted increased attention in recent years due to their enhanced sensitivity and distinct topological features. Here, we show that non-local acoustic metagratings enabling precise and simultaneous control over their multiple orders of diffraction can serve as a robust platform for investigating higher-order exceptional points in free space. The proposed metagratings, not only could advance the fundamental research of arbitrary order exceptional points, but could also empower unconventional free-space wave manipulation for applications related to sensing and extremely asymmetrical wave control.

Higher-order exceptional points in photonic systems (Conference Presentation)

2017 ◽  
Author(s):  
Hossein Hodaei ◽  
Absar U. Hassan ◽  
Steffen Wittek ◽  
Midya Parto ◽  
Hipolito Garcia-Gracia ◽  
...  
Keyword(s):  
Higher Order ◽  
Exceptional Points

scholarly journals Hierarchical Construction of Higher-Order Exceptional Points

2020 ◽  
Vol 125 (20) ◽  
Author(s):  
Q. Zhong ◽  
J. Kou ◽  
Ş. K. Özdemir ◽  
R. El-Ganainy
Keyword(s):  
Higher Order ◽  
Exceptional Points

Enhanced sensitivity at higher-order exceptional points

Nature ◽  
2017 ◽  
Vol 548 (7666) ◽  
pp. 187-191 ◽  
Author(s):  
Hossein Hodaei ◽  
Absar U. Hassan ◽  
Steffen Wittek ◽  
Hipolito Garcia-Gracia ◽  
Ramy El-Ganainy ◽  
...  
Keyword(s):  
Higher Order ◽  
Exceptional Points ◽  
Enhanced Sensitivity

Floquet higher-order exceptional points and dynamics in PT-symmetric quadrimer waveguides

2020 ◽  
Vol 74 (6) ◽  
Author(s):  
Jun Jia ◽  
Bo Zhu ◽  
Fuqiu Ye ◽  
Honghua Zhong ◽  
Haiming Deng
Keyword(s):  
Higher Order ◽  
Exceptional Points

scholarly journals Optical lattices with higher-order exceptional points by non-Hermitian coupling

2018 ◽  
Vol 113 (10) ◽  
pp. 101108 ◽  
Author(s):  
Xingping Zhou ◽  
Samit Kumar Gupta ◽  
Zhong Huang ◽  
Zhendong Yan ◽  
Peng Zhan ◽  
...  
Keyword(s):  
Optical Lattices ◽  
Higher Order ◽  
Exceptional Points
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