Quantum communication, protocols & technology is a research area focused on exploiting quantum mechanical phenomena—such as superposition, entanglement, and no-cloning—for the transmission, processing, and security of information across quantum and hybrid quantum‑classical networks. It encompasses theoretical design and analysis of communication protocols (e.g., quantum key distribution, entanglement distribution, quantum teleportation, and quantum repeaters), physical implementations using diverse platforms (photonic, solid‑state, and atomic systems), and engineering of network architectures, error mitigation, and interface technologies. The field aims to realize scalable, high‑fidelity quantum networks and to integrate quantum communication primitives into broader quantum information processing and cryptographic infrastructures.
University of Iowa researchers have discovered a method to "purify" photons, an advance that could make optical quantum technologies more efficient and more secure.
Quantum Physics
Dec 10, 2025
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Researchers from the School of Physics at Wits University, working with collaborators from the Universitat Autònoma de Barcelona, have demonstrated how quantum light can be engineered in space and time to create high-dimensional ...
Optics & Photonics
Dec 5, 2025
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Quantum technology is accelerating out of the lab and into the real world, and a new article argues that the field now stands at a turning point—one that is similar to the early computing age that preceded the rise of the ...
Quantum Physics
Dec 4, 2025
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A prototype device that has demonstrated record-breaking longevity could help open up new frontiers in next-generation communications and computing technologies.
Optics & Photonics
Dec 3, 2025
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A tiny device that entangles light and electrons without super-cooling could revolutionize quantum tech in cryptography, computing, and AI.
Optics & Photonics
Dec 2, 2025
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Synchrotron radiation sources generate highly brilliant light pulses, ranging from infrared to hard X-rays, which can be used to gain deep insights into complex materials.
Condensed Matter
Dec 2, 2025
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An international research team involving Paderborn University has achieved a crucial breakthrough on the road to a quantum internet. For the first time ever, the polarization state of a single photon emitted from a quantum ...
Optics & Photonics
Dec 2, 2025
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Researchers at the University of Sydney have cracked a long-standing problem in microchip-scale lasers by carving tiny "speed bumps" into the devices' optical cavity in their quest to produce exceptionally "clean" light. ...
Optics & Photonics
Nov 28, 2025
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For decades, physicists have dreamed of a quantum internet: a planetary web of ultrasecure communications and super-powered computation built not from electrical signals, but from the ghostly connections between particles ...
Optics & Photonics
Nov 26, 2025
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As part of the QuNET project, researchers have demonstrated how quantum key distribution works reliably via hybrid and mobile channels. The results are milestones for sovereign, quantum-secured communication in Germany and ...
Optics & Photonics
Nov 25, 2025
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