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Extremal covariant positive operator valued measures.
- Source :
-
Journal of Mathematical Physics . Dec2004, Vol. 45 Issue 12, p4435-4447. 13p. - Publication Year :
- 2004
-
Abstract
- We consider the convex set of positive operator valued measures (POVM) which are covariant under a finite dimensional unitary projective representation of a group. We derive a general characterization for the extremal points, and provide bounds for the ranks of the corresponding POVM densities, also relating extremality to uniqueness and stability of optimized measurements. Examples of applications are given. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00222488
- Volume :
- 45
- Issue :
- 12
- Database :
- Academic Search Index
- Journal :
- Journal of Mathematical Physics
- Publication Type :
- Academic Journal
- Accession number :
- 15877847
- Full Text :
- https://doi.org/10.1063/1.1806262