5 papers · 1 filter
Estimating the photon-number distribution of photonic channels with realistic devices and applications in photonic quantum information processing
Emilien Lavie, Ignatius William Primaatmaja, Wen Yu Kon +2
Characterising the input-output photon-number distribution of an unknown optical quantum channel is an important task for many applications in quantum information processing. Ideal…
Securing practical quantum communication systems with optical power limiters
Gong Zhang, Ignatius William Primaatmaja, Jing Yan Haw +3
Controlling the energy of unauthorized light signals in a quantum cryptosystem is an essential criterion for implementation security. Here, we propose a passive optical power limit…
Practical quantum key distribution with non-phase-randomized coherent states
Li Liu, Yukun Wang, Emilien Lavie +4
Quantum key distribution (QKD) based on coherent states is well known for its implementation simplicity, but it suffers from loss-dependent attacks based on optimal unambiguous sta…
Versatile security analysis of measurement-device-independent quantum key distribution
Ignatius William Primaatmaja, Emilien Lavie, Koon Tong Goh +2
Measurement-device-independent quantum key distribution (MDI-QKD) is the only known QKD scheme that can completely overcome the problem of detection side-channel attacks. Yet, desp…
Reply to "Comment on 'Modified quantum-speed-limit bounds for open quantum dynamics in quantum channels'"
Xin Liu, Wei Wu, Chao Wang
The authors of the comment[Phys. Rev. A 97, 046101 (2018)] raise that the inconsistency in calculating some common quantum-speed-limit (QSL) bounds, which is presented in our paper…