6 papers
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…
Optimal single-shot discrimination of optical modes
Ignatius William Primaatmaja, Asaph Ho, Valerio Scarani
Retrieving classical information encoded in optical modes is at the heart of many quantum information processing tasks, especially in the field of quantum communication and sensing…
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…
Loss-tolerant quantum key distribution with a twist
J. Eli Bourassa, Ignatius William Primaatmaja, Charles Ci Wen Lim +1
The security of measurement device-independent quantum key distribution (MDI QKD) relies on a thorough characterization of one's optical source output, especially any noise in the…
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…
Characterising the correlations of prepare-and-measure quantum networks
Yukun Wang, Ignatius William Primaatmaja, Emilien Lavie +2
Prepare-and-measure (P&M) quantum networks are the basic building blocks of quantum communication and cryptography. These networks crucially rely on non-orthogonal quantum encoding…