Bound state in the continuum (source code)

= Bound state in the continuum
{wiki=Bound_state_in_the_continuum}

A "bound state in the continuum" refers to a quantum mechanical system where a particle is bound to a potential, leading to discrete energy levels, while the overall spectrum of energies available to the system also contains continuous states. In simpler terms, it’s a situation in which a particle can occupy a localized (bound) state, despite being surrounded by a continuum of unbound states.