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- M. Sasaki, Masayuki Fujiwara, +43 authors Andrea Zeilinger
- Optics express
- 2011

A secure communication network with quantum key distribution in a metropolitan area is reported. Six different QKD systems are integrated into a mesh-type network. GHz-clocked QKD links enable us toâ€¦ (More)

- A. R. Dixon, Z. L. Yuan, J. F. Dynes, A. W. Sharpe, A. J. Shields
- Optics express
- 2008

We report the first gigahertz clocked decoy-protocol quantum key distribution (QKD). Record key rates have been achieved thanks to the use of self-differencing InGaAs avalanche photodiodes designedâ€¦ (More)

We demonstrate a quantum key distribution with a secure bit rate exceeding 1 Mbit/s over 50 km fiber averaged over a continuous 36-hours period. Continuous operation of high bit rates is achievedâ€¦ (More)

- J. F. Dynes, Z. L. Yuan, A. W. Sharpe, A. J. Shields
- ArXiv
- 2008

A quantum random number generator QRNG based on gated single photon detection of an Inâ€“ GaAs photodiode at gigahertz frequency is demonstrated. Owing to the extremely long coherence time of eachâ€¦ (More)

- J. F. Dynes, Z. L. Yuan, A. W. Sharpe, A. J. Shields
- 2007 Quantum Electronics and Laser Scienceâ€¦
- 2007

Experimental one-way decoy quantum key distribution (QKD) is reported as a function of distance up to 25.3km. The high key rates obtained exceed one order of magnitude more than QKD performed withoutâ€¦ (More)

- Marco Lucamarini, K. A. Patel, +6 authors A. J. Shields
- Optics express
- 2013

We analyse the finite-size security of the efficient Bennett-Brassard 1984 protocol implemented with decoy states and apply the results to a gigahertz-clocked quantum key distribution system. Despiteâ€¦ (More)

- F. J. Tai, Z. L. Yuan, X. L. Wu, Picheng Zhao, X. L. Hu, W. Wang
- 2011

Membrane proteins are involved in many functions due to their cellular locations. Although the effect of drought on plants has been extensively studied, little is known about the changes of membraneâ€¦ (More)

Avalanche photodiodes are widely used as practical detectors of single photons. Although conventional devices respond to one or more photons, they cannot resolve the number in the incident pulse orâ€¦ (More)

- Z. L. Yuan, A. W. Sharpe, J. F. Dynes, A. R. Dixon, A. J. Shields
- CLEO/QELS: 2010 Laser Science to Photonicâ€¦
- 2010

We demonstrate multi-gigahertz photon-counting at 1550nm using self-differencing In-GaAs APDs. The quantum efficiency is characterized as 23.5% at an after-pulse probability of 4.84%. The device willâ€¦ (More)

- O. Thomas, Z. L. Yuan, J. F. Dynes, A. W. Sharpe, A. J. Shields
- 2011 Conference on Lasers and Electro-Opticsâ€¦
- 2011

Photon number detection (PND) is an essential requirement for quantum information processing based on photonic qubits, for example in Bell state measurements used in quantum teleportation<sup>1</sup>â€¦ (More)