Effective Potential and Quantum Dynamical Correlators
  The approach to the calculation of quantum dynamical correlation functions is presented in the framework of the Mori theory. An unified treatment of classic and quantum dynamics is given in terms of Weyl representation of operators and holomorphic variables. The range of validity of an approximate molucular dynamics is discussed 
R.Giachetti, R.Maciocco and V.Tognetti