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Quantum Logic Gate Created Using Excitons

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."

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  1. "Green Eggs and Ham" - Communist Propaganda by Michael's+a+Jerk! · · Score: -1, Offtopic

    Throughout history there have been examples of writers of childrens' stories inserting more adult themes into their works. Many childrens' stories and Disney movies contain sex and drugs, but most of the adult themes have more to do with politics. Authors as a whole are an opinionated bunch, and every once in a while they secrete their beliefs and propaganda in seemingly innocent works. Frank Baum filled The Wizard of Oz with references to the gold or silver standard debate of the time. Mao Zedong's Little Red Book reeks of Communist beliefs, as does the Communist Manifesto. But after extensive research, I have discovered what might be the most frightening example of all. Hidden in the words and pictures of "Green Eggs and Ham" by the beloved Dr. Seuss is a veritable allegory of Communist ideology. From every innocent tongue twister springs a hidden meaning or anagram, and every plot twist shows the "struggle" against Capitalism.

    Though the characters seem innocent and pure, just under the surface lurks a deeper, redder truth. The name of the main character Sam is also the initials of the secret Socialist American Militia. Coincidence? I think not. The main character remains nameless because he represents the nameless millions that have not been "saved" and converted to Communism. When Sam brings in all the possible dining companions, it is not difficult to see through the happy childrens' book to the darker underlying meaning. The mouse in the house represents all of the little people who have been converted and now happily toil in equality. The fox shows that smart and clever people have joined the Communist side. The goat is a representative of the agricultural interests that enjoy the benefits of Communism. As you see, this is not just a childrens' book.

    The locales were also not chosen by coincidence. The house shows that everybody will have a roof over their head, while the box is representative of manufacturing. The car is just an example of the luxuries people would be able to afford in a Communist world. The train shows that the world would still be structured and happy. Just like in Mussolini's Italy, where the trains ran on time. The darkness represents Capitalism, the "darkness" that is overcome when they exit the tunnel. The nameless Capitalist is nearing the end of his journey of conversion. The boat that is his last locale is an example of the powerful navy under the Communist world, able to destroy everybody else. But the good doctor does not stop here.

    Even in his images, Dr. Seuss is pushing his Communism on impressionable children. It is no accident that the only sad person throughout the story is the only Capitalist. Nor is it mere happenstance that the sad wretch is reading a Western newspaper. And the ham that looks like Russia? Nothing between these covers is accidental, down to the red hat on Sam. Even when they go in a tree, it is obvious that Seuss understands that accepting Communism is going "out on a limb." From the red flag the boat is flying to the look of joy on the nameless Capitalist (after sampling Communism, of course), every image is calculated to subliminally drive Communism into the minds of impressionable children. They show Seuss' convoluted image of right and wrong to the world.

    When Communists tell other adults to give up their ways, the Capitalists know to just ignore them, but our children, our future, have not been trained yet, so it is very easy for them to fall for Seuss' evil words, especially after seeing the joy and hearing "I do so like green eggs and ham! Thank you! Thank you, Sam-I-am!" (Seuss 62). My research centered soley on "Green Eggs and Ham," but I am sure Seuss used other books to spread his evil. We must protect our children from Seuss and his kind, before it is too late.

    --

    I'm not Seth.

  2. excited by Anonymous Coward · · Score: -1, Offtopic

    "electrons trapped in the middle layer were excited by light to create a quantum logical gate with four states."

    I'm pretty excited by light too. Espcially purple flashing lights!

  3. exitrons? by Anonymous Coward · · Score: -1, Offtopic

    http://www.greatgirls.com/xsamples/juditasophie_se t02/images/juditasophie_set02_007.jpg

    yeah baby!

  4. Quantum Leap by Anonymous Coward · · Score: -1, Offtopic

    remember ziggi? What a piece of crap.

  5. It never fails.. by OmniVector · · Score: -1, Offtopic

    Slashdot always posts these kind of mind bogling conundrums when it's too early in the morning for my brain to comprehend it.

    --
    - tristan
  6. Translation? by Anonymous Coward · · Score: -1, Offtopic

    I tried to use Babelfish to translate, but cannot find what language this is in?

  7. moron logic vs. phonIE media hypenosys by Anonymous Coward · · Score: -1, Offtopic

    cyphering how many babies it costs for a barroll of crudeness, we've decided to cut back, a lot.

    as for linus, the whoreabull Godless thieving/murdering georgewellian fuddites may have met their match there. you know what happens to the good guys, right?

    we've saved 1000's, if not 10's of 1000's of $, buy not buying into the payper liesense hostage ransom stock markup execrable such as is distributed buy the felonious kingdumb & IT's naykid furor et AL.

    no matter. the #1 task is planet/population rescue. the lights are coming up. we're in crisis mode. you can help.

    consult with/trust in yOUR creator. more breathing. vote with yOUR wallet. seek others of non-aggressive intentions/behaviours. that's the spirit, moving you.

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    each harmed innocent carries with it a bad toll. it will be repaid by you/us. the Godless felons will not be available to make reparations.

    pay attention. that's definitely affordable, plus you might develop skills which could prevent you from being misled any further by phonIE ?pr? ?firm? generated misinformation.

    good work so far. there's still much to be done. see you there.

  8. Re:Spare the Poor Server and read this by Fungii · · Score: -1, Offtopic

    I really don't think that the institute of physics needs your help to prevent slashdotting, there have been many articles linked there from slashdot before, and I never noticed any effect, so that leaves 2 possibilities:

    1) You have crusaded to protect their servers every other time a story on slashdot linked to one of their articles. Good work!

    2) You are karma whoreing (sp?).

    I'm guessing 2.

  9. more&more eyecons by Anonymous Coward · · Score: -1, Offtopic

    you just can't bulleave anything that comes from sum of the whoreable payper liesense hostage ransom stock markup execrable georgewellian fuddites' ?pr? ?firms?.

    tell 'em robbIE. avoidance is not helpful. you might need/get some more suckup poiNTers from the softwar gangsters' ?pr? bots, but think of what you're trading for a few more worth less phonIE payper billybuks. yOUR fans are waiting?

    your patentdead censoring devices are failing miserably. there's no going back, & it's useless to attack. fudge on, if you must.