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RAMBOQ Year 2 Success stories

HP Labs Bristol UK. Univ Queensland Australia. RAMBOQ Year 2 Success stories. Univ Erlangen. J.G. Rarity Innsbruck, Feb 15th 2005. IdQuantique. RAMBOQ Year 2 Success stories Innsbruck, Feb 15 th 2005. For linear optics quantum computation and quantum networks we need:

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RAMBOQ Year 2 Success stories

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  1. HP Labs Bristol UK Univ Queensland Australia RAMBOQ Year 2 Success stories Univ Erlangen J.G. Rarity Innsbruck, Feb 15th 2005 IdQuantique

  2. RAMBOQ Year 2 Success storiesInnsbruck, Feb 15th 2005 For linear optics quantum computation and quantum networks we need: 1. High efficiency sources of single photons, entangled photons and interference between them. 2. A scalable 2-qubit CNOT gate. 3. High efficiency and long-distance teleportation and entanglement swapping. We have developed:

  3. High efficiency pillar microcavity sources of pure state single photons. Waveguide sources of picosecond photon pairs

  4. A ‘scalable’ 2-qubit CNOT gate Truth table Fidelity ~0.8 In the proposal Actual realisation

  5. long-distance entanglement swapping

  6. Other Highlights: • Free-space distribution of entangled photon pairs over 7.8 km in an intra-city link • Triggered qutrits for quantum information processing • Quantum coin tossing protocol for distributed qutrits • 4-photon path-entanglement for quantum metrology • First worldwide bank transfer via entanglement-based QC • Complete Bell-state analysis of entangled states • 9 PRL and 2 Nature publications, 2 papers selected as 2004 highlights by IOP.

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