The Quantum Information Group (QIG) is developing a new approach to information technology that applies the fundamental laws of Quantum Physics to network communications and computing.
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Quantum Key Distribution
Quantum cryptography provides a secure means for distributing secret keys between two parties (usually referred to as Alice and Bob) on an optical network. A unique feature of the technique is that the secrecy of the keys is independent of the resources available to a hacker.
Applications in quantum information technology, such as quantum cryptography and quantum computing, require new devices that generate and detect light at the quantum level. Toshiba have developed a generic nanotechnology for single photon generation and detection using semiconductor quantum dots.
Independent indistinguishable quantum light sources on a reconfigurable photonic integrated circuit
D. J. P. Ellis, A. J. Bennett, C. Dangel, J. P. Lee, J. P. Griffiths, T. A. Mitchell, T.-K. Paraiso, P. Spencer, D. A. Ritchie and A. J. Shields
Overcoming the rate-distance limit of quantum key distribution without quantum repeaters
M. Lucamarini, Z. L. Yuan, J. F. Dynes and A. J. Shields
Best-Practice Criteria for Practical Security of Self-Differencing Avalanche Photodiode Detectors in Quantum Key Distribution
A. Koehler-Sidki, J. F. Dynes, M. Lucamarini, G. L. Roberts, A. W. Sharpe, Z. L. Yuan and A. J. Shields
Field trial of a QKD and high-speed classical data hybrid metropolitan network (Conference Presentation)
A. Wonfor, H. Qin, R. Kumar, X. Tang, J. F. Dynes, A. J. Shields, R. V. Penty and I. H. White
A quantum light-emitting diode for the standard telecom window around 1,550 nm
T. Müller, J. Skiba-Szymanska, A. B. Krysa, J. Huwer, M. Felle, M. Anderson, R. M. Stevenson, J. Heffernan, D. A. Ritchie and A. J. Shields
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