Category Technology/Electronics

Quantum light source goes fully On-Chip, bringing Scalability to the Quantum Cloud

Quantum light source goes fully on-chip, bringing scalability to the quantum cloud
Artistic illustration of the chip-integrated quantum light source for the generation of entangled photons. Credit: Raktim Haldar/Michael Kues

An international team of researchers from Leibniz University Hannover (Germany), the University of Twente (Netherlands), and the start-up company QuiX Quantum has presented an entangled quantum light source fully integrated for the first time on a chip. The results of the study were published in the journal Nature Photonics.

“Our breakthrough allowed us to shrink the source size by a factor of more than 1,000, allowing reproducibility, stability over a longer time, scaling, and potentially mass-production. All these characteristics are required for real-world applications such as quantum processors,” says Prof. Dr...

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Researchers Discover New Circuit Element

Abstract image of a circuit board design
The research team published their new circuit element discovery in the February issue of the journal Scientific Reports. | Image: Getty Images

Researchers have identified a new circuit element known as a meminductor. Dr. H. Rusty Harris, associate professor in the Department of Electrical and Computer Engineering at Texas A&M University, has identified a new circuit element known as a meminductor.

A circuit element is an electrical component used to help direct and control the flow of electricity through an electrical circuit. The classical three are known as the resistor, capacitor and inductor. Two additional circuit elements, the memristor and the memcapacitor, were only discovered in the past 15 years...

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Photonic Filter Separates Signals from Noise to Support Future 6G Wireless Communication

Photonic filter separates signals from noise to support future 6G wireless communication
Illustration of how the integrated microwave photonic filter helps to separate signals of interest from background noise or unwanted interference in complex electromagnetic environments. Credit: Peking University research team

Researchers have developed a new chip-sized microwave photonic filter to separate communication signals from noise and suppress unwanted interference across the full radio frequency spectrum. The device is expected to help next-generation wireless communication technologies efficiently convey data in an environment that is becoming crowded with signals from devices such as cell phones, self-driving vehicles, internet-connected appliances and smart city infrastructure.

“This new microwave filter chip has the potential to improve wireless communication, such as ...

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A new type of Photonic Time Crystal gives Light a Boost

 Time varying interface and light
Time varying interface and light. Photo: Viktar Asadchy

Researchers have developed a way to create photonic time crystals and shown that these bizarre, artificial materials amplify the light that shines on them. These findings, described in a paper in Science Advances, could lead to more efficient and robust wireless communications and significantly improved lasers.

Time crystals were first conceived by Nobel laureate Frank Wilczek in 2012. Mundane, familiar crystals have a structural pattern that repeats in space, but in a time crystal, the pattern repeats in time instead. While some physicists were initially sceptical that time crystals could exist, recent experiments have succeeding in creating them...

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