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Structural approach to unambiguous discrimination of two mixed quantum states
USD
10.1063/1.3298683
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Affiliations:
1 Institut für Quantenoptik und Quanteninformation, Österreichische Akademie der Wissenschaften, A-6020 Innsbruck, Austria
2 Institut für Theoretische Physik III, Heinrich-Heine-Universität Düsseldorf, D-40225 Düsseldorf, Germany
a) Electronic mail: matthias.kleinmann@uibk.ac.at.
J. Math. Phys. 51, 032201 (2010)
/content/aip/journal/jmp/51/3/10.1063/1.3298683
http://aip.metastore.ingenta.com/content/aip/journal/jmp/51/3/10.1063/1.3298683

## Figures

FIG. 1.

Optimal success probability of the states given in Eq. (73), depending on the relative probability of the occurrence of (solid line). The dashed lines denote the success probability of single state detection (lower bound) and the dotted line corresponds to a simple upper bound. In brackets we denote the measurement types as defined in Sec. III B.

FIG. 2.

Optimal success probability depending on the relative probability of the occurrence of . (a) A “random” example. (b) An asymmetric example, cf. Eq. (74). In brackets we denote the measurement types as defined in Sec. III B. For details see text in Sec. VI C.

FIG. 3.

Flow chart of a generic strategy to solve/reduce the USD of two mixed states. For details see text in Sec. VII.

## Tables

Table I.

Possible ranks of the measurement operators of the optimal USD measurement in four dimensions (cf. also Sec. III B).

/content/aip/journal/jmp/51/3/10.1063/1.3298683
2010-03-19
2014-04-21

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