Extremal covariant positive operator valued measures: the case of a compact symmetry group
Mathematical Physics
2008-06-20 v2 math.MP
Quantum Physics
Abstract
Given a unitary representation U of a compact group G and a transitive G-space , we characterize the extremal elements of the convex set of all U-covariant positive operator valued measures.
Keywords
Cite
@article{arxiv.0801.4721,
title = {Extremal covariant positive operator valued measures: the case of a compact symmetry group},
author = {Claudio Carmeli and Teiko Heinosaari and Juha-Pekka Pellonpää and Alessandro Toigo},
journal= {arXiv preprint arXiv:0801.4721},
year = {2008}
}
Comments
minor corrections in version 2