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arXiv · 1501.05540

Realization of single-qubit positive operator-valued measurement via a one-dimensional photonic quantum walk

Zhihao Bian·Jian Li·Hao Qin·Xiang Zhan·Rong Zhang·Barry C. Sanders·Peng Xue
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Abstract

We perform generalized measurements of a qubit by realizing the qubit as a coin in a photonic quantum walk and subjecting the walker to projective measurements. Our experimental technique can be used to realize photonically any rank-1 single-qubit positive operator-valued measure via constructing an appropriate interferometric quantum-walk network and then projectively measuring the walker's position at the final step.

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Zhihao Bian, Jian Li, Hao Qin, Xiang Zhan, Rong Zhang, Barry C. Sanders, Peng Xue. 2015-01-22. Realization of single-qubit positive operator-valued measurement via a one-dimensional photonic quantum walk. https://doi.org/10.1103/physrevlett.114.203602

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