Coherent-state representation of reduced density matrices of correlated electronic systems

The one-particle reduced density matrix of correlated electronic systems is computed by expressing the many-electron wavefunction as a superpositon of generalized coherent states, each representing a single Slater determinant . This representation could be used for developing a density matrix functio nal theory. The sensitivity of the density matrix to the parameters is demo nstrated. (C) 2000 Published by Elsevier Science B.V.