Based on the so-called Quantum Key Distribution (QKD), researchers at TU Darmstadt have developed a new, tap-proof communication network. The new system is used to exchange symmetric keys between parties in order to encrypt messages […]
Qunnect was awarded two SBIR awards from the US Department of Energy totaling $1.85M for the development and commercialization of the company’s Quantum Repeater product suite. When complete, this collection of devices supports the next generation […]
It has been conjectured that counterfactual communication is impossible, even for post-selected quantum particles. A team of researchers has strongly challenged this by proposing precisely such a counterfactual scheme where—unambiguously—none of Alice’s photons that correctly […]
Researchers have developed a protocol for entanglement generation in the Quantum Internet that allows a repeater node to use n-qubit Greenberger-Horne-Zeilinger (GHZ) projective measurements that can fuse n successfully entangled links, i.e., two-qubit entangled Bell pairs shared across n network edges, […]
Developing Quantum Key Distribution (QKD) has been recently directed toward distance extension and network expansion for real-world secure communications. Considering a recent report on a quantum communication network over 4,600 km, it seems that QKD networks […]
A team of physicists and mathematicians has discovered a new connection between superposition and entanglement that does not assume that quantum theory is correct. While quantum theory has proven to be supremely successful since its […]
Quantum mathematicians at the University of Copenhagen have solved a mathematical riddle that allows for a person’s geographical location to be used as a personal ID that is secure against even the most advanced cyber […]
A team of researchers at Tsinghua University in China, has broken the distance record for Quantum Secure Direct Communication (QSDC) by sending information using their protocol a distance of 102.2 km. They devised a new […]
Researchers at the Department of Energy’s Oak Ridge National Laboratory, SRI International, Freedom Photonics and Purdue University have made strides toward a fully quantum internet by designing and demonstrating the first-ever Bell state analyzer for […]
Researchers have developed a new high-purity single-photon source that can operate at room temperature. The source is an important step toward practical applications of quantum technology, such as highly secure communication based on Quantum Key […]
Unforgeable quantum money tokens were the first invention of quantum information science, but remain technologically challenging as they require quantum memories and/or long-distance quantum communication. More recently, virtual “S-money” tokens were introduced. These are generated […]
A tiny experiment launching to the International Space Station later this year could set the stage for a future global quantum network. Called the Space Entanglement and Annealing QUantum Experiment (or SEAQUE), the milk-carton-size technology […]
Researchers experimentally demonstrated five information-theoretically secure anonymity protocols on an eight user city-wide quantum network using polarisation entangled photon pairs. Anonymity in networked communication is vital for many privacy-preserving tasks. Secure key distribution alone is […]
The NCSC, which is run by the NATO Communications and Information Agency (NCI Agency), protects NATO networks around the clock and works with UK company Post-Quantum to conduct the test. The trial started in March […]
Equinix is planning to use Quantum Key Distribution (QKD) technology from SK Telecom to secure dedicated lines between its data centers. The two companies have an agreement to develop QKD, a cryptographic communications technique which […]
Quside, a spin-off of ICFO (Institute of Photonic Sciences) in Barcelona, Spain, has announced availability of its new chip-based quantum entropy source technology, the QN 100, for ultrafast and high-quality random number generation. The new QN […]
Scientists develop a chaos-based stream cipher that can withstand attacks from large-scale quantum computers. Read More Quantum Computers News — ScienceDaily
PQShield, a cybersecurity company specializing in post-quantum cryptography, has today announced $20 million in series A funding. The operation has been led by Addition, the venture firm founded by Lee Fixel, with participation from existing […]
Chinese scientists have implemented twin-field quantum key distribution (QKD) through an 833-km optical fiber, setting a new world record in the field. The system has tolerated a channel loss beyond 140 dB. Furthermore, the optimized four-phase […]
A novel framework based on semidefinite programming provides universal security bounds for device-independent quantum key distribution by directly calculating von Neumann entropy using complete measurement statistics, enabling analysis of complex protocols beyond traditional CHSH inequality violations and extending to other device-independent cryptographic tasks.
ID Quantique (IDQ), the world leader in quantum-safe security solutions, today launched the Cerberis XG at the Inside Quantum Technology conference (IQT).
A team of researchers at QuTech – a collaboration between Delft University of Technology and TNO – is the first to have connected two quantum processors through an intermediate node and to have established shared entanglement between multiple stand-alone quantum processors.
Researchers from QuTech in the Netherlands reports realization of the first multi-node quantum network, connecting three quantum processors.
Telefónica Tech has collaborated with Barcelona-based startup Quside, and New York-based Qrypt to successfully complete the integration of a new quantum technology into its cloud service hosted in its Virtual Data Centers (VDC). Telefónica Tech […]
Researchers have developed a QKD receiver chip featuring the full photonic circuitry needed for different time-based protocols, including single-photon detectors.