A spin-dependent quantum trajectory methodology is outlined which achieves electron exchangecorrelation on an *ab initio* basis. The methodology is intended to give workers in electronic structure the same computational capability which has been available for decades in classical dynamics.

%K Quantum Trajectory
%K Exchange-Correlation
%K Pauli Exclusion Principle
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=43792