Enhanced sensitivity at higher-order exceptional points

Hossein Hodaei, Absar U. Hassan, Steffen Wittek, Hipolito Garcia-Gracia, Ramy El-Ganainy, Demetrios N. Christodoulides and Mercedeh Khajavikhan ()
Additional contact information
Hossein Hodaei: CREOL, The College of Optics and Photonics, University of Central Florida
Absar U. Hassan: CREOL, The College of Optics and Photonics, University of Central Florida
Steffen Wittek: CREOL, The College of Optics and Photonics, University of Central Florida
Hipolito Garcia-Gracia: CREOL, The College of Optics and Photonics, University of Central Florida
Ramy El-Ganainy: Michigan Technological University
Demetrios N. Christodoulides: CREOL, The College of Optics and Photonics, University of Central Florida
Mercedeh Khajavikhan: CREOL, The College of Optics and Photonics, University of Central Florida

Nature, 2017, vol. 548, issue 7666, 187-191

Abstract: The response of a ternary, parity–time-symmetric system that exhibits a third-order exceptional point increases as a function of the cube-root of induced perturbations.

Date: 2017
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DOI: 10.1038/nature23280

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