4 papers
Practical Countermeasure Against Attacks Exploiting Detection Efficiency Mismatch in Quantum Key Distribution
Ben J. Taylor, Peter R. Smith, James F. Dynes +4
We demonstrate a practical countermeasure against a well-known class of attacks on quantum key distribution (QKD) systems that exploit detection efficiency mismatch, where the rece…
All-photonic quantum key distribution beyond the single-repeater bound
Matthew S. Winnel, Sergio Juárez, Chithrabhanu Perumangatt +2
Quantum protocols require classical signaling, and when classical signals propagate faster than quantum ones, standard rate-loss limits can be surpassed. We introduce an all-photon…
Reference-Beam Attacks against Twin-Field Quantum Key Distribution using Optical Injection Locking
Sergio Juárez, Alessandro Marcomini, Mikhail Petrov +5
Twin-Field Quantum Key Distribution (TF-QKD) has become a leading protocol to bring quantum communications to the national scale. The protocol requires the establishment of a share…
An entangled photon source for the telecom C-band based on a semiconductor-confined spin
Petros Laccotripes, Junyang Huang, Ginny Shooter +6
Multiphoton entangled states are a key resource for quantum networks and measurement-based quantum computation. Scalable protocols for generating such states using solid-state spin…