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quantum encryption News
Taking Quantum Encryption into Orbit
Feb 7, 2024 — Entanglement quantum key distribution (QKD) is a fundamental principle for securing future communication networks. For this type of QKD, entangled photons are generated and sent to two separate receivers, often referred to as “Alice and Bob.” These photons cannot be intercepted without disrupting their entangled states. And, because Alice and Bob are also connected by a conventional network, they can openly share information about the quality of entanglement that each photon shares, and thus...
Multidimensional Quantum Communications with Legacy Fibers
JOHANNESBURG, Jan. 28, 2020 — In a new “twist” on quantum communication using optical fiber, researchers from the University of Witwatersrand (Wits) and Huazhong University of Science and Technology (HUST) have demonstrated that multiple quantum patterns of twisted...
Quantum Loop Provides Testbed for Unhackable Communications
CHICAGO, Jan. 13, 2020 — Scientists from the U.S. Department of Energy’s (DOE) Argonne National Laboratory and the University of Chicago (UChicago) have launched a quantum loop, consisting of two connected, 26-mile fiber optic cables that run between Argonne and the...
Structured Light Could Increase Information Capacity
JOHANNESBURG, Nov. 4, 2019 — Researchers from the University of Witswatersrand (Wits) have reported on progress made in the use of structured light in quantum protocols to create a larger encoding alphabet. The researchers said that since patterns of light can be distinguished...
Entangled Photon Pairs Create Ultrastrong Correlations
GENEVA, Oct. 21, 2019 — Researchers at the University of Geneva (UNIGE), working with Tehran’s Institute for Research in Fundamental Sciences (IPM), have shown theoretically that a new, ultrastrong quantum correlation is formed when three pairs of entangled photons are...
New Research Seeks Solution to Deploying QKD Technology Over Fiber Optics
TOKYO, March 6, 2019 — The National Institute of Information and Communications Technology (NICT) is researching potential encryption methods for quantum communication that could be integrated into fiber optic networks. The research focuses on how to achieve secure...
Researchers Use Silicon Photonics to Create Quantum Random Number Generator
BRISTOL, England, July 30, 2018 — A chip-based device measuring just 1 sq mm has demonstrated the potential to generate quantum-based random numbers at gigabit (Gb)-per-second speeds, using minimal power. The tiny device, which is enabled by silicon photonics, could be used as a...
Energy-Efficient Frequency Comb Could Be Used for Quantum Encryption
LOS ANGELES, Jan. 15, 2018 — A new design for a frequency comb that requires 1,000 times less power than traditional combs uses organic molecules to generate combs in ultrahigh-Quality Factor (ultra-high Q) microcavities. A University of Southern California (USC) research team...
Ottawa Displays High-Dimensional Quantum Encryption
OTTAWA, Ontario, Aug. 25, 2017 — A quantum-secured message containing more than one bit of information per photon has been sent through the air above the city of Ottawa. According to scientists, this is the first time high-dimensional quantum encryption has been demonstrated with...
Optical Signals Measured From Space Could Enable Quantum Encryption Network
ERLANGEN, Germany, July 5, 2017 — Quantum-limited coherent measurements of optical signals were sent from a satellite in Earth’s orbit to an optical ground station over a distance of 38,600 kilometers (almost 24,000 miles). Excess noise was bound. The precise Earth-based...
Shifting Modes Enable Free-Space Optical Communication
VIENNA, Nov. 12, 2014 — Twisted beams of light have been used to transmit images through the air over 3 km, demonstrating significant data-carrying capacity of light in free-space communications. A team from the Institute for Quantum Optics and Quantum Information (IQOQI),...
Canada to Foster Quantum Photonics Collaborations
OTTAWA, Ontario, Canada, Nov. 7, 2014 — Canada’s National Research Council has set out on a mission to foster development of next-generation photonic sensors and quantum encryption systems. The Quantum Photonic Sensing and Security program is aimed forming partnerships to translate...
Quantum Mechanics Keeps Secrets Safe
Nov 1, 2004 — If you want to keep a secret, it helps to whisper. That's what researchers at NuCrypt LLC have demonstrated in a technique for quantum encryption that uses off-the-shelf components, runs at up to 650 Mb/s, is compatible with the existing...
(13 results found)
May 2024
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