Linear optical implementation of a quantum network for quantum estimation |
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| Authors: | Zhi-Wei Wang Jian Li Yun-Feng Huang Pei Zhang |
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| Institution: | a Key Laboratory of Quantum Information, University of Science and Technology of China, CAS, Hefei 230026, People's Republic of China
b Department of Physics, Southeast University, Nanjing 211189, People's Republic of China |
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| Abstract: | We present an interferometer for simulating the quantum network for quantum estimation proposed by A.K. Ekert et al. A.K. Ekert, C.M. Alves, D.K.L. Oi, M. Horodecki, P. Horodecki, L.C. Kwek, Phys. Rev. Lett. 88 (2002) 217901]. We experimentally perform overlap measurements of two single-qubit states with linear optical elements. The scheme is generalized to perform estimation of Trρ3. |
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| Keywords: | 42 65 Lm 03 67 Lx 03 67 -a |
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