computers
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Nanotechnology
Unique molecules can lead to smaller, more efficient computers
Graphical abstract. Credit: Journal of the American Chemical Society (2025). doi: 10.1021/jacs.4c18150 Today, most of us have a fairly powerful computer, or smartphone, in our hands. However, the computer was not necessarily that portable. Since the 1980s they are smaller, lighter and are suitable for storing and processing huge amounts of data. However, there are no silicon chips that can…
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Science
D-Wave argues that its quantum computers can solve scientific relevance problems much faster than classical methods
Dynamic scaling and resource estimates for large-scale quantum simulations. Credit: Science (2025). doi:10.1126/science.ado6285 A team of quantum computer researchers from D-Wave, a quantum computer maker working with an international team of physicists and engineers, claims that modern quantum processors are used to run quantum simulations faster than they do on classic computers. In a paper published in the journal Science,…
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Physics
How Schrödinger’s Cats Help Us to Improve Quantum Computers
Credit: Pixabay/CC0 Public Domain Thanks to technology inspired by Schrödinger’s Cat, quantum computers can have fewer overall components. A team of researchers at Amazon Web Services used “Bosonic Cat Qubits” to improve the ability of quantum computers to correct errors. Demonstration of quantum error correction, which requires reduced hardware overhead, is reported in a paper published in Nature. This system…
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Physics
Simulate the creation of particles in the magnifying universe using quantum computers
A complete circuit for measuring the number of particles created in the expanding universe. Credit: Science Report (2025). doi: 10.1038/s41598-025-87015-6. A new study published in Scientific Reports simulates particle creation in the expanding universe using an IBM quantum computer and demonstrates digital quantum simulations of quantum field theory in curved space-time (QFTC). Although attempts to create a perfect quantum theory…
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Science
How classical computers can beat quantum computers at their own game
Diagram of a quantum system simulated on both classical and quantum computers. The highlighted section shows how the influence of a component of the system is limited to neighboring components. Credit: Lucy Reading-Ikanda/Simons Foundation Earlier this year, researchers at the Flatiron Institute’s Center for Computational Quantum Physics (CCQ) used classical computers and sophisticated mathematical models to solve what some say…
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Physics
Google’s Sycamore quantum chip breaks classical computers performing random circuit sampling
Phase transition in linear cross-entropy. Credit: Nature (2024). DOI: 10.1038/s41586-024-07998-6 A team of engineers, physicists, and quantum experts at Google Research found that by reducing noise to a certain level, the company’s Sycamore quantum chip can outperform classical computers that perform random circuit sampling (RCS). discovered. In their study published in the journal Nature, the group fine-tuned the processor’s operating…
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