Search Results - "Shields, J A"

Overcoming the rate–distance limit of quantum key distribution without quantum repeaters by Lucamarini, M., Yuan, Z. L., Dynes, J. F., Shields, A. J.

“…Quantum key distribution (QKD) 1 , 2 allows two distant parties to share encryption keys with security based on physical laws. Experimentally, QKD has been…”
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A quantum light-emitting diode for the standard telecom window around 1,550 nm by Müller, T., Skiba-Szymanska, J., Krysa, A. B., Huwer, J., Felle, M., Anderson, M., Stevenson, R. M., Heffernan, J., Ritchie, D. A., Shields, A. J.

“…Single photons and entangled photon pairs are a key resource of many quantum secure communication and quantum computation protocols, and non-Poissonian sources…”
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Practical Security Bounds Against the Trojan-Horse Attack in Quantum Key Distribution by Lucamarini, M., Choi, I., Ward, M. B., Dynes, J. F., Yuan, Z. L., Shields, A. J.

“…In the quantum version of a Trojan-horse attack, photons are injected into the optical modules of a quantum key distribution system in an attempt to read…”
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Quantum key distribution without detector vulnerabilities using optically seeded lasers by Comandar, L. C., Lucamarini, M., Fröhlich, B., Dynes, J. F., Sharpe, A. W., Tam, S. W.-B., Yuan, Z. L., Penty, R. V., Shields, A. J.

“…Quantum cryptography immune from detector attacks is realized by the development of a source of indistinguishable laser pulses based on optically seeded…”
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A semiconductor source of triggered entangled photon pairs by Stevenson, R. M, Young, R. J, Atkinson, P, Cooper, K, Ritchie, D. A, Shields, A. J

“…Entangled photon pairs are an important resource in quantum optics, and are essential for quantum information applications such as quantum key distribution and…”
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Spin-photon entanglement with direct photon emission in the telecom C-band by Laccotripes, P., Müller, T., Stevenson, R. M., Skiba-Szymanska, J., Ritchie, D. A., Shields, A. J.

“…Quantum networks, relying on the distribution of quantum entanglement between remote locations, have the potential to transform quantum computation and secure…”
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Coherent light scattering from a telecom C-band quantum dot by Wells, L., Müller, T., Stevenson, R. M., Skiba-Szymanska, J., Ritchie, D. A., Shields, A. J.

“…Quantum networks have the potential to transform secure communication via quantum key distribution and enable novel concepts in distributed quantum computing…”
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Experimental measurement-device-independent quantum digital signatures by Roberts, G. L., Lucamarini, M., Yuan, Z. L., Dynes, J. F., Comandar, L. C., Sharpe, A. W., Shields, A. J., Curty, M., Puthoor, I. V., Andersson, E.

“…The development of quantum networks will be paramount towards practical and secure telecommunications. These networks will need to sign and distribute…”
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Directly Phase-Modulated Light Source by Yuan, Z. L., Fröhlich, B., Lucamarini, M., Roberts, G. L., Dynes, J. F., Shields, A. J.

“…The art of imparting information onto a light wave by optical signal modulation is fundamental to all forms of optical communication. Among many schemes,…”
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Avoiding the blinding attack in QKD by Shields, A. J, Yuan, Z. L, Dynes, J. F

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An entangled-light-emitting diode by Farrer, I, Ritchie, D. A, Shields, A. J, Salter, C. L, Nicoll, C. A, Stevenson, R. M

“…An optical quantum computer, powerful enough to solve problems so far intractable using conventional digital logic, requires a large number of entangled…”
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Field test of quantum key distribution in the Tokyo QKD Network by Sasaki, M, Fujiwara, M, Ishizuka, H, Klaus, W, Wakui, K, Takeoka, M, Miki, S, Yamashita, T, Wang, Z, Tanaka, A, Yoshino, K, Nambu, Y, Takahashi, S, Tajima, A, Tomita, A, Domeki, T, Hasegawa, T, Sakai, Y, Kobayashi, H, Asai, T, Shimizu, K, Tokura, T, Tsurumaru, T, Matsui, M, Honjo, T, Tamaki, K, Takesue, H, Tokura, Y, Dynes, J F, Dixon, A R, Sharpe, A W, Yuan, Z L, Shields, A J, Uchikoga, S, Legré, M, Robyr, S, Trinkler, P, Monat, L, Page, J-B, Ribordy, G, Poppe, A, Allacher, A, Maurhart, O, Länger, T, Peev, M, Zeilinger, A

“…A secure communication network with quantum key distribution in a metropolitan area is reported. Six different QKD systems are integrated into a mesh-type…”
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Cambridge quantum network by Dynes, J. F., Wonfor, A., Tam, W. W. -S., Sharpe, A. W., Takahashi, R., Lucamarini, M., Plews, A., Yuan, Z. L., Dixon, A. R., Cho, J., Tanizawa, Y., Elbers, J. -P., Greißer, H., White, I. H., Penty, R. V., Shields, A. J.

“…Future-proofing current fibre networks with quantum key distribution (QKD) is an attractive approach to combat the ever growing breaches of data theft. To…”
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Robust random number generation using steady-state emission of gain-switched laser diodes by Yuan, Z. L., Lucamarini, M., Dynes, J. F., Fröhlich, B., Plews, A., Shields, A. J.

“…We demonstrate robust, high-speed random number generation using interference of the steady-state emission of guaranteed random phases, obtained through…”
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An avalanche-photodiode-based photon-number-resolving detector by Shields, A. J, Kardyna, B. E, Yuan, Z. L

“…Avalanche photodiodes are widely used as practical detectors of single photons 1 . Although conventional devices respond to one or more photons, they cannot…”
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Coexistence of High-Bit-Rate Quantum Key Distribution and Data on Optical Fiber by Patel, K. A., Dynes, J. F., Choi, I., Sharpe, A. W., Dixon, A. R., Yuan, Z. L., Penty, R. V., Shields, A. J.

“…Quantum key distribution (QKD) uniquely allows the distribution of cryptographic keys with security verified by quantum mechanical limits. Both protocol…”
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Radiative recombination mechanisms in polar and non-polar InGaN/GaN quantum well LED structures by Badcock, T. J., Ali, M., Zhu, T., Pristovsek, M., Oliver, R. A., Shields, A. J.

“…We study the photoluminescence internal quantum efficiency (IQE) and recombination dynamics in a pair of polar and non-polar InGaN/GaN quantum well (QW)…”
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Quantum teleportation using highly coherent emission from telecom C-band quantum dots by Anderson, M., Müller, T., Huwer, J., Skiba-Szymanska, J., Krysa, A. B., Stevenson, R. M., Heffernan, J., Ritchie, D. A., Shields, A. J.

“…A practical way to link separate nodes in quantum networks is to send photons over the standard telecom fibre network. This requires sub-Poissonian photon…”
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Electric-field-induced coherent coupling of the exciton states in a single quantum dot by Bennett, A. J, Pooley, M. A, Stevenson, R. M, Ward, M. B, Patel, R. B, de la Giroday, A. Boyer, Sköld, N, Farrer, I, Nicoll, C. A, Ritchie, D. A, Shields, A. J

“…The signature of coherent coupling between two quantum states is an anticrossing in their energies as one is swept through the other. In single semiconductor…”
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Independent indistinguishable quantum light sources on a reconfigurable photonic integrated circuit by Ellis, D. J. P., Bennett, A. J., Dangel, C., Lee, J. P., Griffiths, J. P., Mitchell, T. A., Paraiso, T.-K., Spencer, P., Ritchie, D. A., Shields, A. J.

“…We report a compact, scalable, quantum photonic integrated circuit realised by combining multiple, tuneable InGaAs/GaAs quantum dot single photon sources with…”
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