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    Category Technology/Electronics

    Researchers use Quantum Computer to Identify Molecular Candidate for Development of more Efficient Solar Cells

    July 31, 2023, Categories  Physics, Technology/Electronics

    ORNL team members applied three independent strategies to decrease their project’s computational workload, which reduced their time to solution from months to a few weeks. First, in a technique called qubit tapering, they decreased the number of qubits required to express the problem, reducing the size of the problem itself. Second, they took fewer measurements to solve the problem by measuring groups of terms once rather than measuring each individual term from every group (a process called qubit-wise commutativity). Third, instead of implementing each circuit individually, they found a way to run four circuits in parallel, allowing them to use all 20 qubits in the H1-1. Illustration credit: Adam Malin/ORNL.

    Using the full capabilities of the Quantinuum H1-1 quantum computer, resear...

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    Lights could be the Future of the Internet and Data Transmission

    July 28, 2023, Categories  Physics, Technology/Electronics

    led bulbs on grid spelling 01

    Fast data transmissions could be delivered in homes and offices through light-emitting diodes (LED) bulbs, complementing existing communication technologies and networks.

    The future’s new internet technologies are being rapidly refined by academics and LED-based communication links are expected to be extensively used in numerous emerging services and scenarios, including Light-fidelity (Li-Fi), underwater communications, moderate- to high-speed photonic interconnects and various ‘Internet of Things’ (IoT) devices.

    A new study led by the University of Surrey and University of Cambridge has investigated how to release high-speed photonic sources using metal-halide perovskites...

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    Renewable Solar Energy can help Purify Water, the Environment

    July 26, 2023, Categories  Physics, Technology/Electronics

    Schematic diagram of (left) the formation of (PVF-CNT)/TiO2 NR electrodes. PVF-functionalized CNT was deposited on the NR arrays by electrodeposition. (Right) The proposed solar-driven PEC separation of heavy metal oxyanions is displayed

    Chemists led by Beckman researcher Xiao Su have demonstrated that water remediation can be powered in part — and perhaps even exclusively — by renewable energy sources. Using electrochemistry to separate different particles within a solution (also known as electrochemical separation) is an energy-efficient strategy for environmental and water remediation: the process of purifying contaminated water...

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    Engineers use Radiation Suppression to Develop Better Wireless Charging

    July 24, 2023, Categories  Physics, Technology/Electronics

    Going the distance for better wireless charging
    Two loop antennas (radius: 3.6 centimeters) can transfer power between each other from 18 centimeters apart. Credit: Nam Ha-Van/Aalto University

    A better way to wirelessly charge over long distances has been developed at Aalto University. Engineers have optimized the way antennas transmitting and receiving power interact with each other, making use of the phenomenon of “radiation suppression.” The result is a better theoretical understanding of wireless power transfer compared to the conventional inductive approach, a significant advancement in the field.

    Charging over short distances, such as through induction pads, uses magnetic near fields to transfer power with high efficiency, but at longer distances the efficiency dramatically drops...

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