# Orthogonality of quasibound states

Suppose you have a simple 1D problem with a potential which is such to allow for bound, quasibound, and free states. Are the quasibound states orthogonal to the bound states, or is there some slight overlap?

"Quasibound states" are technically part of the continuum spectrum. (There are some potentials, which go to $$0$$ slowly at $$\infty$$, that have more complicated spectra.)