2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/90136In the paper are considered stationary (Bloch) states of a particle, in the field of periodic biparabolic type potential. It is shown that while the particle's energy decreases in limits of a single energy band, the probability of the particle to be in barrier-type region of periodic potential increases, in contrary to the expected decreasing. This ''anomalous'' behavior is more pronounced for the near-top bands and monotonically decreases for the higher or lower ones.10 pages, 3 figures; changes made in contentQuantum Physicstext