Photonics

First Fully Integrated High-Power Laser on a Lithium Niobate Chip, Paving the Way for Quantum Network Applications

Paulson School of Engineering and Applied Sciences (SEAS) in collaboration with industry partners at Freedom Photonics and HyperLight Corporation, have developed the first fully integrated high-power laser on a lithium niobate chip, paving the way for high-powered telecommunication systems, fully integrated spectrometers, optical remote sensing, and efficient frequency conversion for quantum networks, among other applications…

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April 10, 2022

IonQ Announces New Barium Qubit Technology, Laying Foundation for Advanced Quantum Computing Architectures

IonQ, Inc. (“IonQ”) (NYSE: IONQ), a leader in quantum computing, today announced that it plans to use barium ions as qubits in its systems, bringing about a wave of advantages it believes will enable advanced quantum computing architectures. IonQ is the first quantum computing company able to harness more than one atomic species as qubits, having built its systems to date with ytterbium ions. Now, IonQ plans to use barium ions to build systems that are designed to be faster, more powerful, more easily interconnected, and that feature more uptime for customers.

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December 9, 2021

Cisco Quantum Research and UC Santa Barbara Collaborate to Push the Limits of Quantum Technology

A new collaboration between UC Santa Barbara researchers and Cisco Systems aims to push the boundaries of quantum technologies. Assistant professors Yufei Ding and Galan Moody have received research awards from the technology giant to work with its new Quantum Research Team, which was formed to pursue the research and development required to turn quantum hardware, software, and applications into broadly used technologies.

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November 2, 2021

Optical Processors Light the Path to Warp-Factor Computing

Data has been sent across wide-area networks as light pulses for decades, but optical (or photonic) computing has been slow to meet the challenges of moving data in the form of light at the processor level: photons have proved profoundly trickier to traffic than electrons. And while conventional data processing continued to get faster year-after-year, there seemed scant incentive for technologists to crack the optical conundrum.

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September 20, 2021

Quantum Random Number Generator, Smallest Ever?

Researchers from the University of Science and Technology of China and Zhejiang University developed a quantum random number generator (QRNG) that small and low power enough to be portable. It utilizes a photonic IC with optimized real-time postprocessing for extracting randomness from quantum entropy source of vacuum states.

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September 10, 2021

Getting the Output Right: Team Takes to Task Achieving Full Advantage of Quantum Computing

Quantum computers are advancing at a rapid pace and are already starting to push the limits of the world’s largest supercomputers. Yet, these devices are extremely sensitive to external influences and thus prone to errors which can change the result of the computation. This is particularly challenging for quantum computations that are beyond the reach of our trusted classical computers, where we can no longer independently verify the results through simulation. “In order to take full advantage of future quantum computers for critical calculations we need a way to ensure the output is correct, even if we cannot perform the calculation in question by other means,” says Chiara Greganti from the University of Vienna. 

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September 8, 2021

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