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On the Decompositions of a Quantum State

✍ Scribed by G. Cassinelli; E. De Vito; A. Levrero

Publisher
Elsevier Science
Year
1997
Tongue
English
Weight
213 KB
Volume
210
Category
Article
ISSN
0022-247X

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✦ Synopsis

We classify all the decompositions of a quantum state as a weighted sum of one dimensional projectors. In particular we describe explicitly the set of irreducible decompositions. The physical interest in this problem rests on the possibility of interpreting the decomposition in terms of a classical mixture.

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