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- Anthony Laing
- University of Bristol 1 Centre for Quantum Photonics, H. H. Wills Physics Laboratory and Department of Electrical and Electronic Engineering, , Merchant Venturers Building, Woodland Road, Bristol BS8 1UB, United Kingdom
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- Alberto Peruzzo
- University of Bristol 1 Centre for Quantum Photonics, H. H. Wills Physics Laboratory and Department of Electrical and Electronic Engineering, , Merchant Venturers Building, Woodland Road, Bristol BS8 1UB, United Kingdom
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- Alberto Politi
- University of Bristol 1 Centre for Quantum Photonics, H. H. Wills Physics Laboratory and Department of Electrical and Electronic Engineering, , Merchant Venturers Building, Woodland Road, Bristol BS8 1UB, United Kingdom
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- Maria Rodas Verde
- University of Bristol 1 Centre for Quantum Photonics, H. H. Wills Physics Laboratory and Department of Electrical and Electronic Engineering, , Merchant Venturers Building, Woodland Road, Bristol BS8 1UB, United Kingdom
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- Matthaeus Halder
- University of Bristol 1 Centre for Quantum Photonics, H. H. Wills Physics Laboratory and Department of Electrical and Electronic Engineering, , Merchant Venturers Building, Woodland Road, Bristol BS8 1UB, United Kingdom
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- Timothy C. Ralph
- University of Queensland 2 Department of Physics, , St. Lucia, Queensland 4072, Australia
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- Mark G. Thompson
- University of Bristol 1 Centre for Quantum Photonics, H. H. Wills Physics Laboratory and Department of Electrical and Electronic Engineering, , Merchant Venturers Building, Woodland Road, Bristol BS8 1UB, United Kingdom
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- Jeremy L. O’Brien
- University of Bristol 1 Centre for Quantum Photonics, H. H. Wills Physics Laboratory and Department of Electrical and Electronic Engineering, , Merchant Venturers Building, Woodland Road, Bristol BS8 1UB, United Kingdom
説明
<jats:p>We demonstrate photonic quantum circuits that operate at the stringent levels that will be required for future quantum information science and technology. These circuits are fabricated from silica-on-silicon waveguides forming directional couplers and interferometers. While our focus is on the operation of quantum circuits, to test this operation required construction of a photon source that produced near-identical pairs of photons. We show nonclassical interference with two photons and a two-photon entangling logic gate that operate with near-unit fidelity. These results are a significant step toward large-scale operation of photonic quantum circuits.</jats:p>
収録刊行物
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- Applied Physics Letters
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Applied Physics Letters 97 (21), 211109-, 2010-11-22
AIP Publishing
