Exceptional points in the scattering continuum

Details Exceptional points in the scattering continuum Exceptional points in the scattering continuum

2009-09-15

arxiv.org/abs/0909.2766v1

Phys.Rev.C80:034619,2009

Physics

Nuclear Physics

Nuclear Theory

7 pages, 9 figures

Scientific paper

10.1103/PhysRevC.80.034619

The manifestation of exceptional points in the scattering continuum of atomic nucleus is studied using the real-energy continuum shell model. It is shown that low-energy exceptional points appear for realistic values of coupling to the continuum and, hence, could be accessible experimentally. Experimental signatures are proposed which include the jump by $2\pi$ of the elastic scattering phase shift and a salient energy dependence of cross-sections in the vicinity of the exceptional point.

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