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Pile, David |
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Title |
How many bits can a photon carry |
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Journal Article |
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2012 |
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Nature Photonics |
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Nat. Photon. |
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6 |
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1 |
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14-15 |
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fromIPMRAS |
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Quantum physics offers a way to enhance the amount of information a photon can carry, with potential applications in optical communication, lithography, metrology and imaging. |
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View from... OSA Frontiers in Optics 2011: How many bits can a photon carry? |
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no |
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RPLAB @ gujma @ |
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780 |
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Santori, Charles; Beausoleil, Raymond G. |
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Quantum memory: Phonons in diamond crystals |
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Journal Article |
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2012 |
Publication |
Nature Photonics |
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Nat. Photon. |
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6 |
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10-12 |
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fromIPMRAS |
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The demonstration that quantum information can be stored in a bulk-diamond crystal in the form of an optically excited phonon gives researchers a new type of mechanical solid-state quantum memory to explore. |
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RPLAB @ gujma @ |
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781 |
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Xu, XinAn; Wong, Chee Wei |
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Quantum optics: Correlations on a chip |
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Journal Article |
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2012 |
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Nature Photonics |
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Nat. Photon. |
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6 |
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75-76 |
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fromIPMRAS |
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Researchers have developed a semiconductor structure capable of supporting quantum correlations between photons and strong single-photon nonlinearities, thus paving the way for the development of chip-based devices for quantum secure communications and quantum information processing. |
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RPLAB @ gujma @ |
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782 |
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He, Rongrui; Sazio, Pier J. A.; Peacock, Anna C.; Healy, Noel; Sparks, Justin R.; Krishnamurthi, Mahesh; Gopalan, Venkatraman; Badding, John V. |
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Integration of gigahertz-bandwidth semiconductor devices inside microstructured optical fibres |
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Journal Article |
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2012 |
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Nature Photonics |
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Nat. Photon. |
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6 |
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3 |
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174-179 |
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fromIPMRAS |
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The prospect of an all-fibre optical communications network in which light can be generated, modulated and detected within the fibre itself without the need for discrete optoelectronic devices is an appealing one. However, to become a reality, this approach requires the incorporation of optoelectronic materials and functionalities into silica fibres to create a new breed of semiconductor-fibre hybrid devices for performing various tasks. Here, we report the integration of precisely doped semiconductor materials and high-quality rectifying semiconductor junctions into microstructured optical fibres, enabling high-speed, in-fibre functionalities such as photodetection at telecommunications wavelengths. These semiconductor-fibre hybrid devices exhibit a bandwidth of up to 3 GHz and seamless coupling to standard single-mode optical fibres. |
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RPLAB @ gujma @ |
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783 |
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Yao, Xing-Can; Wang, Tian-Xiong; Xu, Ping; Lu, He; Pan, Ge-Sheng; Bao, Xiao-Hui; Peng, Cheng-Zhi; Lu, Chao-Yang; Chen, Yu-Ao; Pan, Jian-Wei |
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Observation of eight-photon entanglement |
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Journal Article |
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2012 |
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Nature Photonics |
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Nat. Photon. |
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6 |
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4 |
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225-228 |
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fromIPMRAS |
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The creation of increasingly large multipartite entangled states is not only a fundamental scientific endeavour in itself, but is also the enabling technology for quantum information. Tremendous experimental effort has been devoted to generating multiparticle entanglement with a growing number of qubits. So far, up to six spatially separated single photons have been entangled based on parametric downconversion. Multiple degrees of freedom of a single photon have been exploited to generate forms of hyper-entangled states. Here, using new ultra-bright sources of entangled photon pairs, an eight-photon interferometer and post-selection detection, we demonstrate for the first time the creation of an eight-photon Schrödinger cat state with genuine multipartite entanglement. The ability to control eight individual photons represents a step towards optical quantum computation, and will enable new experiments on, for example, quantum simulation, topological error correction and testing entanglement dynamics under decoherence. |
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RPLAB @ gujma @ |
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784 |
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