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Title: Local description of quantum inseparability
Author: Sanpera Trigueros, Anna
Tarrach, R., 1948-
Vidal Bonafont, Guifré
Keywords: Mecànica quàntica
Quantum mechanics
Issue Date: 1998
Publisher: The American Physical Society
Abstract: We show how to decompose any density matrix of the simplest binary composite systems, whether separable or not, in terms of only product vectors. We determine for all cases the minimal number of product vectors needed for such a decomposition. Separable states correspond to mixing from one to four pure product states. Inseparable states can be described as pseudomixtures of four or five pure product states, and can be made separable by mixing them with one or two pure product states.
Note: Reproducció digital del document publicat en format paper, proporcionada per PROLA i
It is part of: Physical Review A, 1998, vol. 58, núm. 2, p. 826-830.
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ISSN: 1050-2947
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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