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    Smart cable sharing gives quantum computers a big boost

    April 15, 2026, Categories  Physics, Technology/Electronics

    An artist’s rendering of time multiplexing of control signals to a quantum computer.
    The control signals for single-qubit gates (short blocks) and two-qubit gates (long blocks) travel through common cables (tunnels) to switches, which distribute them among the qubits (spheres) based on switching signals (diamonds). By ordering the control signals in a clever way, akin to playing Tetris, traffic jams in the flow of control signals can largely be avoided and programs on the quantum computer can be executed almost as fast as if each qubit had its own cable for control signals.
    Credit: Chalmers University of Technology | Boid

    A major obstacle in the development of powerful quantum computers is the growing number of cables required to control a computer as the number of qubits increases...

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    Clearing significant hurdle to quantum computing

    September 30, 2025, Categories  Physics, Technology/Electronics

    Harvard physicists working to develop game-changing tech demonstrate 3,000 quantum-bit system capable of continuous operation

    One often-repeated example illustrates the mind-boggling potential of quantum computing: A machine with 300 quantum bits could simultaneously store more information than the number of particles in the known universe.

    Now process this: Harvard scientists just unveiled a system that was 10 times bigger and the first quantum machine able to operate continuously without restarting.

    In a paper published in the journal Nature, the team demonstrated a system of more than 3,000 quantum bits (or qubits) that could run for more than two hours, surmounting a series of technical challenges and representing a significant step toward building the super computers, wh...

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    Discarded particles dubbed ‘neglectons’ may unlock universal quantum computing

    August 7, 2025, Categories  Physics, Technology/Electronics

    Tech image
    Key to the researchers’ discovery were rescued particles they dubbed “neglectons,” a name that reflects both their overlooked status and their newfound importance. (Image generated using MidJourney)

    Quantum computers have the potential to solve problems far beyond the reach of today’s fastest supercomputers. But today’s machines are notoriously fragile. The quantum bits, or “qubits,” that store and process information are easily disrupted by their environment, leading to errors that quickly accumulate.

    One of the most promising approaches to overcoming this challenge is topological quantum computing, which aims to protect quantum information by encoding it in the geometric properties of exotic particles called anyons...

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    Case study demonstrates practical applications for quantum machine learning

    January 30, 2025, Categories  Physics, Technology/Electronics

    CSIRO shows practical application for quantum machine learning
    Schematic illustration of the data processing procedure, emphasizing self-adaptive quantum kernel (SAQK) PCA. Credit: Advanced Science (2025). DOI: 10.1002/advs.202411573

    Quantum researchers from CSIRO, Australia’s national science agency, have demonstrated the potential for quantum computing to significantly improve how we solve complex problems involving large datasets, highlighting the potential of using quantum in areas such as real-time traffic management, agricultural monitoring, healthcare, and energy optimization.

    By leveraging the unique properties of quantum computing, like superposition and entanglement, researchers compressed and analyzed a large dataset with speed, accuracy, and efficiency that traditional computers cannot match.

    The work is published in the journa...

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