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Scientific American

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These days, cats still don’t act this way, but physicists now regularly create analogues of Schrödinger’s cat in the lab by smearing the microscopic quantum world over longer and longer distances.

Such “Cat states” have found many homes, promising more sensitive quantum measurements and acting as the basis for quantum error-correcting codes-a necessary component for future error-prone quantum computers.

With these goals in mind, some researchers are eager to create better cat states with single ions.

So far, standard techniques have imposed limits on how far their quantum nature could spread. Recently, researchers at the Joint Quantum Institute developed a new scheme for creating single-ion cat states, detailing the results this week in Nature Communications.

Their experiment places a single ytterbium ion into a superposition-a quantum combination-of two different states. There’s still just one ion, but its quantum nature now extends over a distance more than a thousand times larger than its original size.

Such long-range superpositions are highly sensitive, and could enable precise atom interferometry measurements or robust quantum cryptographic techniques.

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9 Responses

Post Author: Tony Joseph

9 thoughts on “Scientific American

    Micheal Walsh

    (January 24, 2018 - 12:13 am)

    I for one…robot overlords, etc etc.

    Re Tanroq

    (January 24, 2018 - 12:13 am)

    Gold important metal in the world. Hehe

    Daniel Valadez

    (January 24, 2018 - 12:13 am)

    NO TO ROBOTS! NO TO AI

    Sean Greenwood

    (January 24, 2018 - 12:13 am)

    Amazing

    Cara Frost

    (January 24, 2018 - 12:13 am)

    Jamie Stephenson this is cool as fuck!

    Steryios Yannoulis

    (January 24, 2018 - 12:13 am)

    Imagine this with AI.

    Bruno de Moraes

    (January 24, 2018 - 12:13 am)

    André Langoni

    Ben MagicNeo

    (January 24, 2018 - 12:13 am)

    Olivier Ceyhan Thomas Rslt

    Rick Jones

    (January 24, 2018 - 12:13 am)

    Cristian Ricardo Peñuela Pico

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