Abstract
With the eigenfunctional theory, we study the correlation of the local electrons in the Kondo lattice model, and give a general formulation to calculate the correlation functions of the local electrons where it ends in order to calculate the partition function of the conduction electrons with time-dependent external potentials. This formulation may be very useful to study the low-energy physical property of the Kondo lattice model by numerical simulations, especially by the quantum Monte Carlo method. In order to justify this formulation, we apply it for one and two magnetic impurities scattering problems in the continuum limit, and obtain reliable results that are in agreement with previous exact results.
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