TY - JOUR
AB - We study the dynamics of an electron weakly coupled to a phonon gas. The initial state of the electron is the superposition of two spatially localized distant bumps moving towards each other, and the phonons are in a thermal state. We investigate the dynamics of the system in the kinetic regime and show that the time evolution makes the non-diagonal terms of the density matrix of the electron decay, destroying the interference between the two bumps. We show that such a damping effect is exponential in time, and the related decay rate is proportional to the total scattering cross section of the electron-phonon interaction.
AU - Adami, Riccardo
AU - László Erdös
ID - 2754
IS - 2
JF - Journal of Statistical Physics
TI - Rate of decoherence for an electron weakly coupled to a phonon gas
VL - 132
ER -