2 papers
quant-ph2008
Degeneracies in a nonintegrable pairing model
J. Okolowicz, M. Ploszajczak, J. Dukelsky
The evolution pattern of exceptional points is studied in a non-integrable limit of the complex-extended 3-level Richardson-Gaudin model. The appearance of a pseudo-diabolic point…
nucl-th2008
Features of exceptional points and the continuum spectroscopy
J. Okolowicz, M. Ploszajczak
We discuss observable features of exceptional points and the resonance spectroscopy of Ne using the Shell Model Embedded in the Continuum.