期刊
QUANTUM INFORMATION PROCESSING
卷 11, 期 6, 页码 1751-1763出版社
SPRINGER
DOI: 10.1007/s11128-011-0330-2
关键词
Quantum measurement; POVM; Relabeling; Mixing
资金
- Academy of Finland [138135]
- Emil Aaltonen Foundation
- Academy of Finland (AKA) [138135, 138135] Funding Source: Academy of Finland (AKA)
Quantum measurements are mathematically described by positive operator valued measures (POVMs). Concentrating on finite dimensional systems, we show that one can limit to extremal rank-1 POVMs if two simple procedures of mixing and relabeling are permitted. We demonstrate that any finite outcome POVM can be obtained from extremal rank-1 POVMs with these two procedures. In particular, extremal POVMs with higher rank are just relabelings of extremal rank-1 POVMs and their structure is therefore clarified.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据