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Quantum Logic Gate Created Using Excitons

Posted by Hemos on from the pr0n-named-physics dept.

Roland Piquepaille writes "In this article, PhysicsWeb reports that researchers in the U.S. "have taken another important step towards making a quantum computer. [They] have created a logic gate using two electron-hole pairs -- also known as "excitons" -- in a quantum dot." According to Wikipedia, "an exciton is a combination of an electron and a hole in a semiconductor or insulator in an excited state These physicists from the University of Michigan and other labs made a quantum dot by using a thin gallium arsenide layer stuck between two aluminium gallium arsenide barriers. And electrons trapped in the middle layer were excited by light to create a quantum logical gate with four states. The group says this could be useful "in other approaches to quantum computing based on the optical control of electron-spin qubits in quantum dots.." This summary contains more details."

5 of 146 comments (clear)

  1. Big Deal by Piryoko · · Score: -1, Troll

    I make quantum logic gates out of excitons all the time, in my backyard.

    1. Re:Big Deal by Piryoko · · Score: -1, Troll

      Weren't you listening? Excitons. I use excitons. There are tons of these damn things around here and they always get in my crotch and chafe me! *scratches his excitons*

  2. Re:Spare the Poor Server and read this by Anonymous Coward · · Score: -1, Troll

    Which Dumbass moderator modded this down...this is the original text of the article...

  3. This is the world first Quantum troll ! :o) by borgdows · · Score: -1, Troll

    frist post!!

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    Join the GNAA today!

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    Linux sux!! SCO ownz Linux!

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    Stephen King dead at 57 ...

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    In Soviet Russia, excitrons excites YOU !

  4. LHC by Anonymous Coward · · Score: -1, Troll

    Quantum Logic Gate Created Using Excitons

    Are these the same excitons they create with the large hard-on colliders?