Fig. 6.

Experimental results of loss-tolerant one-way quantum computing. (A) A 2-qubit cluster state used to simulate a single-qubit rotation circuit by a measurement on qubit a. (B and C) A 5-qubit cluster state could realize the circuit in the presence of 1-qubit loss. (D and E) The experimentally measured fidelities of output states of the single-qubit rotation circuit. D (E) shows the results of the scheme B (C), respectively. Measurements on the qubit 4 (2) are performed in basis B_j(α) for different α value, {0, −π/2, −π/3}, so that the target output state will be {|+〉, |R〉, |S〉}, respectively.