Scalable Generation of Graph-State Entanglement through Realistic Linear Optics

Abstract

We propose a scheme for efficient construction of graph states using realistic linear optics, imperfect photon source and single-photon detectors. For any many-body entanglement represented by tree graph states, we prove that the overall preparation and detection efficiency scales only polynomially with the size of the graph, no matter how small the efficiencies for the photon source and the detectors.

4 pages, 3 figures

References in corpus (2)

• Resource-efficient linear optical quantum computation
• Experimental Analysis of a 4-Qubit Cluster State

Cited by in corpus (6)

• Experimental entanglement of six photons in graph states
• Quantum Teleportation Between Distant Matter Qubits
• The efficiencies of generating cluster states with weak non-linearities
• One-way quantum computation with two-photon multiqubit cluster states
• Experimental Quantum Teleportation and Multi-Photon Entanglement via Interfering Narrowband Photon Sources
• A scheme for tunable quantum phase gate and effective preparation of graph-state entanglement