Hierarchical Construction of Higher-Order Exceptional Points
نویسندگان
چکیده
منابع مشابه
Resonance scattering at third-order exceptional points
We analyze scattering cross sections at and near third-order exceptional points (EP3), i.e., points in physical parameter space where three energies and eigenfunctions coincide. At an EP3, the Green’s function contains a pole of third order, in addition to poles of second and first order. We show that the interference of the three pole terms produces a rich variety of line shapes at the excepti...
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Ken-ichi MARUNO1,2, and G. Reinout W. QUISPEL3,4 1Department of Mathematics, The University of Texas-Pan American, Edinburg, Texas 78539-2999, USA 2Faculty of Mathematics, Kyushu University, Hakozaki, Higashi-ku, Fukuoka, 812-8581 3 Department of Mathematics, La Trobe University, Melbourne, Victoria 3086, Australia 4 Centre of Excellence for Mathematics and Statistics of Complex Systems, La Tro...
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ژورنال
عنوان ژورنال: Physical Review Letters
سال: 2020
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.125.203602