npj Quantum Information, Published online: 20 November 2024; doi:10.1038/s41534-024-00908-8 In this paper, scientists proved a lower bound on the soundness of quantum locally testable codes under the distance balancing construction of Evra et al. Their […]
In a groundbreaking collaboration, QuTech, Eurofiber, Q*Bird, and Juniper have successfully developed and implemented a proof-of-concept quantum communication system in the Utrecht area of the Netherlands. This innovative project, called QuaSecom, demonstrates a significant advancement […]
Researchers from LMU and Saarland University have entangled two quantum memories over a 33-kilometer-long fiber optic connection — a record and an important step toward the Quantum Internet. This is the longest distance so far […]
NIST has just chosen the first group of encryption tools that are designed to withstand the assault of a future quantum computer, which could potentially crack the security used to protect privacy in the digital […]
The past decade has seen tremendous progress in experimentally realizing the building blocks of quantum repeaters. Repeater architectures with multiplexed quantum memories have been proposed to increase entanglement distribution rates, but an open challenge is […]
QuTech, Eurofiber and Juniper Networks have launched a Quantum testbed connecting several datacenter locations in The Netherlands. This testbed enables, amongst other applications of quantum cryptography, a way for partners to explore secure communications based […]
Physicists at the University of Basel, Switzerland, have now developed a network node for quantum communication networks that can store single photons in a vapor cell and pass them on later. In quantum communication networks, […]
Researchers at QuTech have demonstrated a key technology for linking quantum nodes over existing telecom fiber, by realizing quantum interference of photons emitted by quantum devices at telecom wavelengths. The technique also allows for compensating […]
Researchers at University of Geneva (UNIGE) and CEA have presented new protocols for Quantum Key Distribution (QKD) in a prepare-and-measure setup with an asymmetric level of trust. While the device of the sender (Alice) is […]
Bandwidth and energy are two fundamental resources needed to exchange information. In digital communication, information is encoded in a finite set of physical states known as symbols. In optics, modulated laser pulses are often used […]
