Phonon generation via the Cerenkov effect in rectangular quantum wires is theoretically studied
based on the quantum kinetic equation for the phonon population operator. Analytical expressions for the
rate of change of the phonon population and conditions for phonon generation are obtained. Numerical
results for the specific rectangular quantum wires show that the amplitude of the laser field must satisfy
additional conditions that are different in comparison with those of the other works. The differences between
the generation of acoustic phonon and optical phonon are considered.
