2023-06-012023-06-012010-11-21https://hdl.handle.net/10669/89358The determination of the two-body density functional from its one-body density is achieved for Moshinsky's harmonium model, using a phase-space formulation, thereby resolving its phase dilemma. The corresponding sign rules can equivalently be obtained by minimizing the ground-state energy.engacceso abiertoTwo-body density functionalOne-body densityHarmonium modelExact phase space functional for two-body systemsartÃculo preliminar10.48550/arXiv.1011.4742