Pattern of optical spatial modes and experimental results of fault-tolerant threshold. (IMAGE)

Light Publishing Center, Changchun Institute of Optics, Fine Mechanics And Physics, CAS

Pattern of optical spatial modes and experimental results of fault-tolerant threshold.

Caption

a, Principle to implement physical qubits with the spatial modes of two entangled photons. And the experimental pattern on each photon is illustrated in b. Experimental results of the fault-tolerant circuits for the logical operation of single-qubit Hadamard gate are shown in c, and the results for the logical operations considering a following two-qubit controlled-not gate are shown in d. Fp and fp represents the success output probabilities for the encoded circuit and non-encoded circuit, respectively. The fault-tolerant manner is verified with Fp > fp.

Credit

by Kai Sun, Ze-Yan Hao, Yan Wang, Jia-Kun Li, Xiao-Ye Xu, Jin-Shi Xu, Yong-Jian Han, Chuan-Feng Li, Guang-Can Guo

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License

CC BY

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