Author/Authors :
Fulde، نويسنده , , P. and Stoll، نويسنده , , H. and Kladko، نويسنده , , K.، نويسنده ,
Abstract :
We formulate the calculation of the ground-state wavefunction and energy of a system of strongly correlated electrons in terms of scattering matrices. A hierarchy of approximations is introduced which results in an incremental expansion of the energy. The present approach generalizes previous work designed for weakly correlated electronic systems.