Tag

Entangled Photons

All articles tagged with #entangled photons

science-and-technology1 year ago•2 min saved

"Quantum Collaboration: Securing Global Communication with Virtual Broadcasting"

Researchers at the University of Waterloo's Institute for Quantum Computing have successfully produced nearly perfect entangled photon pairs from quantum dot sources, a crucial advancement for secure quantum communication. By combining entanglement with quantum dots, the team achieved both a high degree of entanglement and high efficiency, paving the way for applications such as quantum key distribution and quantum repeaters. The new quantum dot entanglement source holds significant promise for the future of secure quantum communications on a global scale.

via Phys.org|

#entangled-photons #quantum-communication #quantum-dot

science-and-technology2 years ago•1 min saved

Quantum-inspired Tech Teleports Data Using Light for Secure Communication

Scientists have successfully transported information in light patterns using the principles of quantum physics, without physically moving the image. By entangling photons and using a nonlinear optical detector, researchers were able to transmit information in the highest dimensionality to date, resembling teleportation. The information appeared at the receiver's end as if it had been teleported there, eliminating the need for physical travel between sender and receiver.

via Interesting Engineering|

#entangled-photons #information-transmission #light-patterns

science-and-technology2 years ago•5 min saved

"Breakthrough: Scientists Create Quantum Correlation Test Free from Randomness"

Scientists have developed a semi-device independent, randomness-free test for quantum correlations and non-projective measurements. The test eliminates the need for seed randomness, which is required in traditional quantum tests. The researchers demonstrated the test using entangled photons and showed that the shared randomness acquired from entangled coins cannot be replicated using classically correlated coins. This discovery has implications for quantum communication protocols and quantum information processing. The study offers a proof of concept for a new approach to certifying non-classicality in a semi-device independent manner.

via Phys.org|

#device-independence #entangled-photons #quantum-correlation

science-and-technology2 years ago•2 min saved

"Quantum Yin-Yang: Physicists Unveil Groundbreaking Visualization of Entangled Light"

Physicists have developed a new analytical technique using biphoton digital holography to measure multiple quantum states in entangled particles more efficiently. By applying holographic principles, researchers were able to infer additional dimensions from just a few details carried between a pair of photons, allowing them to recreate a yin-and-yang symbol programmed into the photon-generating apparatus. This method is exponentially faster than previous techniques, providing a solution to the scalability challenge in projective tomography and offering potential advancements in quantum computing and imaging technologies.

via ScienceAlert|

#entangled-photons #holography #quantum-computing

science-and-technology2 years ago•5 min saved

"Unveiling Surprising Connections: Teenagers, Bonobos, Dogs, Ancient Cats, Modern Cats, and Photons"

This week's scientific discoveries include India's successful moon landing, a study showing that teenage growth spurts and hormonal changes are not unique to humans, research on the vocalizations of the extinct sabertooth tiger, a study revealing that dogs are more sensitive to dog-directed speech, and a breakthrough in visualizing entangled photons in real time using digital holography.

via Phys.org|

#dog-directed-speech #entangled-photons #moon-landing

science-and-technology2 years ago•3 min saved

Quantum dots created with droplet-etching emit C-band optical light

Researchers from the University of Paderborn have successfully manufactured quantum dots that glow in the optical C-band, which is relevant for innovative encryption systems involving quantum technologies. The quantum dots were made by filling droplet-etched holes in an indium aluminum arsenide surface with indium gallium arsenide, lattice-matched to indium phosphide substrates. The team statistically evaluated and examined the symmetry of numerous holes manufactured using different parameters. The method is already demonstrating its potential for manufacturing quantum dots, which could be used as a source of entangled photons in the future.

via Phys.org|

#c-band-optical-light #encryption #entangled-photons

quantum-computing2 years ago•4 min saved

Advancements in On-Chip Photonic Technology for High-Speed and Low-Power Applications.

Researchers in Germany and the Netherlands have developed a complete entangled photon source on a chip that is about the size of a one euro coin. The team used a new architecture to combine several integrated photonic technologies into one device, creating a photonics system-on-a-chip that generates entangled photons. The chip creates pairs of frequency-entangled photons with 99% fidelity about 1000 times per second. The team is now working towards extending the on-chip photonic capabilities to include the creation of multiphoton cluster states.

via physicsworld.com|

#entangled-photons #hybrid-integration #integrated-photonics