  Anomalous transitions involving photons derived by many-body interaction of
the form, $\partial_{\mu} G^{\mu}$, in the standard model are studied. This
does not affect the equation of motion in the bulk, but makes wave functions
modified, and causes the unusual transition characterized by the
time-independent probability. In the transition probability at a time-interval
$T$ expressed generally in the form $P=T \Gamma_0 +P^{(d)}$, now with $ P^{(d)}
\neq 0 $. The diffractive term $P^{(d)}$ has the origin in the overlap of waves
of the initial and final states, and reveals the characteristics of waves. In
particular, the processes of the neutrino-photon interaction ordinarily
forbidden by Landau-Yang's theorem ($\Gamma_0=0$) manifests itself through the
boundary interaction. The new term leads to physical processes over a wide
energy range to have finite probabilities. New methods of detecting neutrinos
using laser are proposed that are based on this difractive term, which enhance
the detectability of neutrinos by many orders of magnitude.
