Radiation damping in real time.
We study the nonequilibrium dynamics of a charge interacting with its own radiation, which originates the radiation damping. The real-time equation of motion for the charge and the associated Langevin equation is found in classical limit. The equation of motion for the charge allows one to obtain the frequency-dependent coefficient of friction. In the lowest order we find that although the coefficient of static friction vanishes, there is dynamical dissipation represented by a non-Markovian dissipative kernel.
Mendes
A C
AC
Centro Brasileiro de Pesquisas Físicas, Rio de Janeiro, 22290-180, Rio de Janeiro, Brazil.
Takakura
F I
FI