INVESTIGADORES
ALCOBA Diego Ricardo
artículos
Título:
Grand-canonical-ensemble representability problem for the one-electron reduced density matrix
Autor/es:
D.R. ALCOBA; R.C. BOCHICCHIO; G.E. MASSACESSI; L. LAIN; A. TORRE
Revista:
PHYSICAL REVIEW A - ATOMIC, MOLECULAR AND OPTICAL PHYSICS
Editorial:
American Physical Society
Referencias:
Lugar: New York; Año: 2007 vol. 75 p. 12509 - 12509
ISSN:
1050-2947
Resumen:
We deal with many-electron systems having a noninteger number of electrons, which cannot be described properly by means of pure states or by canonical statistical ensemble states. The study of the one-electron reduced density matrix for these systems raises the problem of its representability in statistical ensembles of grand canonical type. We derive the necessary and sufficient conditions for the representability of the one-electron reduced density matrix of grand-canonical statistical ensembles.