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Resilience of gated avalanche photodiodes against bright illumination attacks in quantum cryptography
Z. L. Yuan, J. F. Dynes, A. J. Shields
Semiconductor avalanche photodiodes (APDs) are commonly used for single photon detection in quantum key distribution. Recently, many attacks using bright illumination have been pro…
Exciton-spin memory with a semiconductor quantum dot molecule
A. Boyer de la Giroday, N. Skold, R. M. Stevenson +3
We report on a single photon and spin storage device based on a semiconductor quantum dot molecule. Optically excited single electron-hole pairs are trapped within the molecule and…
Field test of quantum key distribution in the Tokyo QKD Network
M. Sasaki, M. Fujiwara, H. Ishizuka +40
A novel secure communication network with quantum key distribution in a metropolitan area is reported. Different QKD schemes are integrated to demonstrate secure TV conferencing ov…
Coherent entangled light generated by quantum dots in the presence of nuclear magnetic fields
R. M. Stevenson, C. L. Salter, A. Boyer de la Giroday +4
A practical source of high fidelity entangled photons is desirable for quantum information applications and exploring quantum physics. Semiconductor quantum dots have recently been…