Experimental Realization of a Four-Photon Seven-Qubit Graph State for One-Way Quantum Computation

Details Experimental Realization of a Four-Photon Seven-Qubit Graph State for One-Way Quantum Computation Experimental Realization of a Four-Photon Seven-Qubit Graph State for One-Way Quantum Computation

2011-05-26

arxiv.org/abs/1105.5211v2

Physics

Quantum Physics

4 pages. Supplementary Material is included in the zip file

Scientific paper

We propose and demonstrate the scaling up of photonic graph state through path qubit fusion. Two path qubits from separate two-photon four-qubit states are fused to generate a two-dimensional seven-qubit graph state composed of polarization and path qubits. Genuine seven-qubit entanglement is verified by evaluating the witness operator. Six qubits from the graph state are used to execute the general two-qubit Deutsch-Jozsa algorithm with a success probability greater than 90%.

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