期刊
PHYSICAL REVIEW A
卷 106, 期 5, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.106.L051702
关键词
-
资金
- National Key Re- search and Development Program of China
- National Nat- ural Science Foundation of China
- Fundamental Research Funds for the Central Universities
- [2019YFA0308704]
- [2018YFA0306202]
- [61975077]
- [91836303]
- [11690032]
- [020414380175]
An efficient tomography method is proposed to address the reconstruction complexity of general quantum coherent-optical detectors. By extracting linear loss and obtaining effective positive-operator-valued measure in matrix representations, the method is applied to reconstruct a typical coherent detector and highlights the effects of linear loss on nonclassical features of coherent optical detectors.
We propose an efficient tomography method to address the reconstruction complexity of any general quantum coherent-optical detectors. By extracting the linear loss from the entire detection system, we obtain the effective positive-operator-valued measure in matrix representations with a much smaller size. We apply this method to reconstruct a typical coherent detector: the weak-field homodyne detector. The method also highlights the effects of linear loss on nonclassical features of coherent optical detectors.
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