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Optics & Photonics Jun 9, 2025

Quantum machine learning: Small-scale photonic quantum processor can already outperform classical counterparts

One of the current hot research topics is the combination of two of the most recent technological breakthroughs: machine learning and quantum computing.

Optics & Photonics Jun 9, 2025

AI-designed waveguides pave the way for next-generation photonic devices

A team of researchers at the University of California, Los Angeles (UCLA) has introduced a novel framework for designing and creating universal diffractive waveguides that can control the flow of light in highly specific ...

Optics & Photonics Jun 5, 2025

Quantum state lifetimes extended by laser-triggered electron tunneling in cuprate ladders

Quantum materials exhibit remarkable emergent properties when they are excited by external sources. Functional applications of these properties rely heavily on their tunability in real time. However, these excited states ...

General Âé¶¹ÒùÔºics May 28, 2025

Twisting light for memory: New chiral photonic device enables real-time control of light polarization and data storage

As fast as modern electronics have become, they could be much faster if their operations were based on light, rather than electricity. Fiber optic cables already transport information at the speed of light; to do computations ...

Optics & Photonics May 22, 2025

A new nanometer-scale measurement tool exploits the quantum properties of light for better precision and speed

University of Illinois Âé¶¹ÒùÔºics Professor Paul Kwiat and members of his research group have developed a new tool for precision measurement at the nanometer scale in scenarios where background noise and optical loss from the ...

General Âé¶¹ÒùÔºics May 20, 2025

Do photons wear out? An astrophysicist explains light's ability to travel vast cosmic distances without losing energy

My telescope, set up for astrophotography in my light-polluted San Diego backyard, was pointed at a galaxy unfathomably far from Earth. My wife, Cristina, walked up just as the first space photo streamed to my tablet. It ...

Optics & Photonics May 14, 2025

Photonic chip design offers simpler solution for one-way light flow in optical circuits

To improve photonic and electronic circuitry used in semiconductor chips and fiber optic systems, researchers at the McKelvey School of Engineering at Washington University in St. Louis tinkered with the rules of physics ...

General Âé¶¹ÒùÔºics May 12, 2025

Twist of light: Non-reciprocity in photon polarization may unlock gravity and quantum mechanics link

A team of physicists has uncovered a surprising new way to explore one of science's greatest challenges: uniting the two fundamental theories that explain how our universe works—Einstein's theory of gravity and quantum ...

Condensed Matter May 8, 2025

Topological polycrystal: A new approach to configurable, multiband topological photonic circuitry

Molding the flow of light—whether confined to localized regions or propagating in free space—remains crucial for modern integrated photonics. The advancement of the multi-channel, programmable optical waveguide and coupler ...

Optics & Photonics May 6, 2025

New microwave-to-optical transducer uses rare-earth ions for efficient quantum signal conversion

Quantum technologies, which leverage quantum mechanical effects to process information, could outperform their classical counterparts in some complex and advanced tasks. The development and real-world deployment of these ...

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