Quantum Physics

  1. Quantum Physics

    Google’s quantum computer speeds up, but practical use is unclear

    Google’s D-Wave quantum computer is getting faster, but it’s still unclear whether it will ever outperform regular computers at completing useful tasks.

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  2. Chemistry

    Elusive chemical reaction transition state captured

    A new method provides a detailed look at the elusive transition state.

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  3. Quantum Physics

    Spooky quantum connection quantified for multiple particles

    Physicists have measured quantum entanglement between several particles rather than just two.

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  4. Quantum Physics

    More tests confirm quantum spookiness

    New experimental results confirm and strengthen evidence for the “spooky” reality of quantum physics.

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  5. Science & Society

    Quantum spookiness, magnetic mysteries and more feedback

    Letters and comments from readers on quantum spookiness, Earth's magnetic field, and more.

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  6. Quantum Physics

    Light mimics hotel with limitless vacancies

    By mimicking a mathematician’s method for creating vacancies in a hotel with an infinite number of rooms, physicists may have found a way of increasing the amount of data that can be carried via light.

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  7. Quantum Physics

    Quantum interpretations feel the heat

    Landauer’s principle shows a way to test competing interpretations about quantum physics.

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  8. Quantum Physics

    Confirmed: Quantum mechanics is weird

    The first demonstration of a loophole-free Bell test validates the weirdness of quantum physics.

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  9. Quantum Physics

    Future quantum computing could exploit old technology

    Silicon transistors have been modified and patched together to form logic gates that could perform calculations in future quantum computers.

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  10. Quantum Physics

    Entanglement: Gravity’s long-distance connection

    The universe may be a vast quantum computer that safely encodes spacetime in an elaborate web of entanglement.

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  11. Quantum Physics

    Quantum choice can be counterproductive

    In a puzzling paradox, delivering quantum messages becomes more difficult if the intended recipient offers the sender multiple options for the time and place of delivery.

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  12. Quantum Physics

    Shinsei Ryu: Error-free quantum calculations

    Physicist Shinsei Ryu navigates the confusing border between the quantum and everyday realms.

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