2 papers
quant-ph2015
Particular spectral singularity in the continuum energies: a manifestation as resonances
E. Hernández, A. Jáuregui, D. Lohr +1
We study the coalescence of two bound energy eigenstates embedded in the continuous spectrum of a real Hamiltonian and the singular point produced by this coalescence. At th…
quant-ph2015
Exceptional points and unitary evolution of the physical solutions
E. Hernández, A. Jáuregui, D. Lohr +1
An example of exceptional points in the continuous spectrum of a real, pseudo-Hermitian Hamiltonian of von Neumann-Wigner type is presented and discussed. Remarkably, these excepti…