1Department of Chemistry, Faculty of Sciences, University of Tehran, Tehran, I.R. IRAN
2Department of Chemistry, Faculty of Sciences, University of Tehran, Tehran, I.R. IRAN
A new derivation of the quantum Boltzmann transport equation for the Fermion system from the quantum time evolution equation for the wigner distribution function is presented. The method exhibits the origin of the time - irreversibility of the Boltzmann equation. In the present work, the spin dependent and indistinguishibility of particles are also considered.