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Tag Archives: Quantum

Artificial atoms created for quantum computing

Laser light (green arrow) generates low-level light emitted from a single photon (purple arrow) at the edges of holes in white graphene atop glass slide (Image source: University of Oregon; Illustration by Joshua Ziegler) Scientists have created artificial atoms that generate single photons, in advance that may be a big step in the development of all-optical quantum computing. [19659005] The …

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Scientists build a machine for the quantum superposition of possible futures

Unlike classical particles, quantum particles can move in different directions from one another in a quantum overlay. Mile Gu, along with researchers from Griffith, used this phenomenon to design quantum devices that can produce a quantum overlay of all possible future forms. Photo credit: NTU, Singapore. In the film of 2018 Avengers: Infinity War Strange in a scene 14 million …

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How ghostly quantum particles fly through barriers almost immediately

Physicists solved a decade-long puzzle by describing how fast a particle can pass through a barrier. Particles can fly through seemingly insurmountable barriers like ghosts. For decades, physicists have wondered how long this so-called quantum tunneling takes. After a three-year investigation, an international team of theoretical physicists now has an answer. According to a new study, they measured a tunneling …

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ProBeat: AI and quantum computing continue to collide

Depending on who you ask, quantum computing is here, not here and both. A few things this week have reminded me that it is not really important to believe that quantum mechanical phenomena will change everything. The mere exploration of the field already affects the entire technology. Binary digits (bits) are the basic information units in classical arithmetic, while quantum …

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New quantum physics experiment suggests that reality is not objective

A new quantum physics experiment provided only one startling idea, which according to the MIT Technology Review was limited to the theory – that under the right conditions two persons could observe the same event, see two different things happen and both are correct. According to research published on Tuesday before the preprint server arXiv, physicists at Heriot Watt University …

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Researchers tune to the smallest radiofrequency in quantum mechanics

Quantum Tunes A weak radio signal is not only a problem when trying to tune in to your favorite radio station, a faint signal is a big problem for MRIs in hospitals and telescopes looking into space. [19659003] Usually we correct a weak signal by moving closer to the source or selecting a different radio station. What if we could …

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The power is always with us? Quantum vacuum forces are set from attractive to repugnant

ASU physicist Frank Wilczek has shown for the first time that the Casimir force can be reversed, repulsive, tunable, or amplified depending on the properties of the material inserted between the plates. Picture credits: Alan Stonebraker, American Physical Society Power is not only strong in Star Wars lore, but also as a fundamental property in physics. For example, scientists can …

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