Generation of high-fidelity four-photon cluster state and quantum-domain demonstration of one-way quantum computing

Abstract

We experimentally demonstrate a simple scheme for generating a four-photon entangled cluster state with fidelity over 0.860 $\pm$ 0.015. We show that the fidelity is high enough to guarantee that the produced state is distinguished from Greenberger-Horne-Zeilinger, W, and Dicke types of genuine four-qubit entanglement. We also demonstrate basic operations of one-way quantum computing using the produced state and show that the output state fidelities surpass classical bounds, which indicates that the entanglement in the produced state essentially contributes to the quantum operation.

5 pages, 5 figures

References in corpus (13)

• Quantum Teleportation is a Universal Computational Primitive
• Experimental One-Way Quantum Computing
• Ultra-bright source of polarization-entangled photons
• Remote State Preparation
• Experimental entanglement of six photons in graph states
• High-speed linear optics quantum computing using active feed-forward
• Detecting Genuine Multipartite Entanglement with Two Local Measurements
• Experimental Analysis of a 4-Qubit Cluster State
• Entanglement Detection in the Stabilizer Formalism
• Schmidt number witnesses and bound entanglement
• Experimental realization of one-way quantum computing with two-photon four-qubit cluster states
• Realization and characterization of a 2-photon 4-qubit linear cluster state
• Experimental violation of a cluster state Bell inequality

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• Discrete Fourier-based Correlations for Entanglement Detection
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• Demonstration of active feedforward one-way quantum computing with photon-matter hyperentanglement
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• Physical Realization of Measurement Based Quantum Computation
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• Minimal physical resources for the realisation of measurement-based quantum computation
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• Reconfigurable cluster state generation in specially poled nonlinear waveguide arrays
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• Entanglement-fidelity relations for inaccurate ancilla-driven quantum computation
• Experimental self-testing for photonic graph states
• The Fidelity of Measurement-Based Quantum Computation under a Boson Environment
• Shaping Quantum Photonic States Using Free Electrons
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• Phase Transitions and Noise Robustness of Quantum Graph States
• Implementation of a quantum controlled-SWAP gate with photonic circuits
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