Quantum Physics

  1. Quantum Physics

    Galileo’s famous gravity experiment holds up, even with individual atoms

    When dropped, two types of atoms accelerate at the same rate despite their differences, much like objects in Galileo’s leaning Tower of Pisa experiment.

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  2. Quantum Physics

    A measurement of positronium’s energy levels confounds scientists

    A gap in the energy levels of positronium seems to be substantially larger than predicted, and physicists don’t know why.

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  3. Quantum Physics

    To live up to the hype, quantum computers must repair their error problems

    Before quantum computers can reach their potential, scientists will need to master quantum error correction.

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  4. Quantum Physics

    This weird quantum state of matter was made in orbit for the first time

    Bose-Einstein condensates made on the International Space Station could reach temperatures lower than any known in the universe.

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  5. Quantum Physics

    Physicists exploit a quantum rule to create a new kind of crystal

    Cold atoms can form crystals as a result of the Pauli exclusion principle.

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  6. Physics

    A newfound superconducting current travels only along a material’s edge

    In a first, scientists spot electricity flowing without resistance on the rim of a topological superconductor.

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  7. Quantum Physics

    New quantum computers can operate at higher temperatures

    Silicon chips operate at higher temperatures than many others, raising hopes for building quantum integrated circuits.

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  8. Quantum Physics

    Quantum mechanics means some black hole orbits are impossible to predict

    Computer simulations reveal that foreseeing the paths of three orbiting objects sometimes requires precision better than the quantum limit.

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  9. Quantum Physics

    Scientists entangled quantum memories linked over long distances

    The entanglement of quantum ‘hard drives’ is a crucial step toward creating a quantum internet.

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  10. Physics

    Scientists cooled a nanoparticle to the quantum limit

    Physicists decreased a nanoparticle’s motion to the lowest level allowed by quantum mechanics.

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  11. Physics

    A quantum strategy could verify the solutions to unsolvable problems — in theory

    A quantum technique for verifying solutions to difficult problems could apply to an “unbelievably huge” class of puzzles.

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  12. Quantum Physics

    Google claimed quantum supremacy in 2019 — and sparked controversy

    Google’s quantum computer outperformed the most powerful supercomputer on a task, the company reported. But some scientists aren’t fully convinced.

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