▎ 摘　　要

When graphene is deformed in a dynamical manner, a time-dependent potential is induced for the electrons. The potential is antisymmetric with respect to valleys and has far-reaching effects. In this paper we find some straightforward applications to Raman spectroscopy: a valley-antisymmetric potential broadens the Raman D band but does not affect the 2D band, which is already observed by recent experiments. The space derivative of the valley-antisymmetric potential gives a force field that accelerates intervalley phonons, while it corresponds to the longitudinal component of the previously discussed pseudoelectric field acting on the electrons. Effects of a pseudoelectric field on the electron is quite difficult to observe due to the valley-antisymmetric coupling constant, on the other hand, such obstacle is absent for intervalley phonons with A(1g) symmetry that constitute the D and 2D bands.