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      A mysterious superconductor’s wave could reveal the physics behind the materials

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      Physicists have finally captured a superconductor’s wave. The first direct evidence of a phase of matter known as a pair-density wave helps reveal the physics that underlies mysterious high-temperature superconductors, which conduct electricity without resistance at surprisingly high temperatures. The wave was detected using a scanning tunneling microscope, researchers report April 1 in Nature. Physicists […] More

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      Scientists entangled quantum memories linked over long distances

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      Physicists’ fantasies of a future quantum internet are a bit closer to reality. Scientists entangled two quantum “hard drives” that were linked by fibers tens of kilometers long. Entanglement, a type of ethereal quantum connection, allows two particles to behave as if intertwined even when distantly separated. The new study entangled two devices called quantum […] More

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      The containers the U.S. plans to use for nuclear waste storage may corrode

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      Containers that the U.S. government plans to use to store dangerous nuclear waste underground may be more vulnerable to water damage than previously thought. Millions of liters of highly radioactive waste from the U.S. nuclear weapons program are currently held in temporary storage units across the country. The government’s game plan for permanently disposing of […] More

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      Scientists cooled a nanoparticle to the quantum limit

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      A tiny nanoparticle has been chilled to the max. Physicists cooled a nanoparticle to the lowest temperature allowed by quantum mechanics. The particle’s motion reached what’s known as the ground state, or lowest possible energy level.    In a typical material, the amount that its atoms jostle around indicates its temperature. But in the case […] More

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

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      Computer scientists’ daydreams have revealed the power of quantum mechanics. Imagine meeting omniscient beings who claim to have the solution to a complex problem that no computer could ever solve. You’d probably be at a loss to check the answer. But now, computer scientists report that quantum mechanics provides a way to quickly verify the […] More

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      This material could camouflage objects from infrared cameras

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      Hotter objects typically glow brighter than cooler ones, making them stand out in infrared images. But a newly designed coating bucks the rule that hotter equals brighter. For certain wavelengths of infrared light, the material’s brightness doesn’t change as it warms, researchers report December 17 in Proceedings of the National Academy of Sciences. Made of […] More

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      Google claimed quantum supremacy in 2019 — and sparked controversy

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      Like Schrödinger’s cat, a 2019 claim of quantum supremacy seems to be simultaneously alive and dead. Thanks to the rules of quantum mechanics, the fabled feline occupies two contradictory states at once, and the same applies to this year’s most prominent quantum advance. In October, researchers from Google claimed to have achieved a milestone known […] More

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      Quantum jitter lets heat travel across a vacuum

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      For the first time, scientists have measured the heat transferred by the quantum effervescence of empty space. Two tiny, vibrating membranes reached the same temperature despite being separated by a vacuum, physicists report in the Dec. 12 Nature. The result is the first experimental demonstration of a predicted but elusive type of heat transfer. Normally, […] More