  We propose the method for identifying many particle electronic states in the
system of coupled quantum dots (impurities) with Coulomb correlations. We
demonstrate that different electronic states can be distinguished by the
complex analysis of localized charge dynamics and non-stationary
characteristics. We show that localized charge time evolution strongly depends
on the properties of initial state and analyze different time scales in charge
kinetics for initially prepared singlet and triplet states. We reveal the
conditions for existence of charge trapping effects governed by the selection
rules for electron transitions between the states with different occupation
numbers.
