Spectral Singularities Do Not Correspond to Bound States in the   Continuum
  We show that, contrary to a claim made in arXiv:1011.0645, the von Neumann-Winger bound states that lie in the continuum of the scattering states are fundamentally different from Naimark's spectral singularities. 
Ali Mostafazadeh
math-ph hep-th math.MP quant-ph