For a Ф^(4)-theory the equal-time transport theory is derived with a collision term by including 4-point correlations.Within aћexpansion a set of coupled equations is presented for the first three energy moments of the Wigner functions and the 4-point correlations.The presence of 4-point correlations.The limit n→0 is discussed.describing the collision term leads already in this limit to particles with width.
展开▼
