Abstract
We present a general formalism for the variational calculation of the one-body density-matrix and correlation functions for strongly correlated lattice electrons in terms of the Fermi hypernetted-chain (FHNC) diagrammatic expansion. It is shown that, in the limit of infinite spatial dimensions, the local-field-approximate FHNC scheme yields the exact solution for the Gutzwiller wave function, which is equivalent to the result of the Gutzwiller approximation.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 15984-15987 |
| Number of pages | 4 |
| Journal | Physical Review B |
| Volume | 47 |
| Issue number | 23 |
| DOIs | |
| State | Published - 1993 |