4 papers
From Kadanoff--Baym to Boltzmann equations for massive spin-1/2 fermions
Xin-Li Sheng, Nora Weickgenannt, Enrico Speranza +2
We derive Boltzmann equations for massive spin-1/2 fermions with local and nonlocal collision terms from the Kadanoff--Baym equation in the Schwinger--Keldysh formalism, properly a…
Derivation of the nonlocal collision term in the relativistic Boltzmann equation for massive spin-1/2 particles from quantum field theory
Nora Weickgenannt, Enrico Speranza, Xin-li Sheng +2
We derive the Boltzmann equation and the collision kernel for massive spin-1/2 particles, using the Wigner-function formalism and employing an expansion in powers of . The p…
Wigner function and kinetic theory for massive spin-1/2 particles
Nora Weickgenannt, Xin-li Sheng, Enrico Speranza +2
We calculate the Wigner function for massive spin-1/2 particles in an inhomogeneous electromagnetic field to leading order in the Planck constant . Going beyond leading orde…
Kinetic theory for massive spin-1/2 particles from the Wigner-function formalism
Nora Weickgenannt, Xin-li Sheng, Enrico Speranza +2
We calculate the Wigner function for massive spin-1/2 particles in an inhomogeneous electromagnetic field to leading order in the Planck constant . Going beyond leading orde…