[Demonstration of abdominal abscesses with Ga-67-citrate scintigraphy and ultrasonography].
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Biomedical subjects
Publications and source records attributed to I Bálint.
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The two-particle density matrix contains all information, which is "readable" by one- and two-particle operators. The report discusses the building of a two-electron density matrix, which is perfectly N-representable by construction. The 2-matrix of a pure quantum state is obtained without the intermediate determination of the wave function. The procedure is illustrated by computations on atomic and small molecular systems.