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Quantum entropy model of an integrated QRNG chip
Gaëtan Gras, Anthony Martin, Jeong Woon Choi +1
We present the physical model for the entropy source of a quantum random number generator chip based on the quantum fluctuations of the photon number emitted by light-emitting diod…
Countermeasure against quantum hacking using detection statistics
Gaëtan Gras, Davide Rusca, Hugo Zbinden +1
Detector blinding attacks have been proposed in the last few years, and they could potentially threaten the security of QKD systems. Even though no complete QKD system has been hac…
Optical control of single-photon negative-feedback avalanche diode detector
Gaëtan Gras, Nigar Sultana, Anqi Huang +4
We experimentally demonstrate optical control of negative-feedback avalanche diode (NFAD) detectors using bright light. We deterministically generate fake single-photon detections…
Secure quantum key distribution over 421 km of optical fiber
Alberto Boaron, Gianluca Boso, Davide Rusca +10
We present a quantum key distribution system with a 2.5 GHz repetition rate using a three-state time-bin protocol combined with a one-decoy approach. Taking advantage of supercondu…
Deterministic unitary operations on time-bin qudits for quantum communication
Felix Bussieres, Yasaman Soudagar, Guido Berlin +2
We show for the first time how deterministic unitary operations on time-bin qubits encoded in single photon pulses can be realized using fiber optics components that are available…