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Scientists Develop Method for Quantum Information Transfer

By - Source: Princeton University | B 16 comments

Researchers at Princeton University claim to have developed a new method to reliably read and transfer quantum information.

The idea is apparently working on a small scale, but could enable a way to much larger quantum computing systems that could hold thousands or even millions of qubits.

Physicist Jason Petta said he and his team were able to leverage a stream of microwave photons to "analyze" a pair of electrons that were trapped in a quantum dot. The microwave stream, controlled by mirrors, allowed the scientists to read the information held by the electrons. The microwaves are changing depending on the spin state of the electrons.

Like other quantum bit research, this project also operates on a very small scale as the entire apparatus "operates over a little more than a centimeter". However, given the size of an electron, the scientists explained that their device is similar to controlling the motion of an object with two device where one is placed on the moon and the other on Earth.

In future research, Petta said that he would want to work on the reliability of the electron pair and then add more quantum dots and scale the system. "But to make use of the scaling, it needs to work a little better," he said. "The first step is to make better mirrors for the microwave cavity."


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  • -6 Hide
    cats_Paw , October 30, 2012 10:21 AM
    This means that we will be able to finally play online with no lag?
    If not... not really that important :D 
  • -1 Hide
    nebun , October 30, 2012 10:34 AM
    at what price?
  • 9 Hide
    fuzzion , October 30, 2012 10:48 AM
    nebunat what price?


    If you have to ask, you probably cant afford it.
  • Display all 16 comments.
  • -5 Hide
    JBB-SaDo , October 30, 2012 11:40 AM
    fuzzionIf you have to ask, you probably cant afford it.


    If you don't ask, you won't be able to afford it....
  • 3 Hide
    hoofhearted , October 30, 2012 11:50 AM
    Trying for a piece of that IBM contract to analyze the massive radio telescope data.
  • 0 Hide
    alvine , October 30, 2012 12:24 PM
    but..will it play crysis
  • -1 Hide
    Anonymous , October 30, 2012 12:38 PM
    uhmmm yea... extremely old news
  • 3 Hide
    freggo , October 30, 2012 1:50 PM
    in 20 years my grandkids will have that in their cell phones (or phone implants).
    And they will complain about the slow speed, the high cost ($299 with contract -before inflation-) and the 2PB storage limit :-)

    Gotta love science !

  • 4 Hide
    jaquith , October 30, 2012 3:00 PM
    While I'm Quantum Computing I guess I can microwave my popcorn.
  • 0 Hide
    wannabepro , October 30, 2012 4:24 PM
    When can I have one!
  • 0 Hide
    acadia11 , October 30, 2012 4:26 PM
    alvinebut..will it play crysis


    No. There don't ask again.
  • 0 Hide
    f-14 , October 30, 2012 6:36 PM
    alvinebut..will it play crysis


    it will probably play global thermonuclear war however, just one photon away from a HDD like failure condition.
    http://www.youtube.com/watch?v=tAcEzhQ7oqA
  • 0 Hide
    gm0n3y , October 30, 2012 6:38 PM
    Quantum computing breakthroughs are becoming more and more frequent lately. The potential of even a system with a small number of q-bits is just amazing. Once these are actually made, it will be a new technological revolution at least as big as the silicon one.
  • 0 Hide
    eijiyuki , October 30, 2012 8:08 PM
    This means we can finally play 3D virtual reality games at 1080p!
  • 0 Hide
    nebun , October 30, 2012 8:44 PM
    fuzzionIf you have to ask, you probably cant afford it.

    can you....wait my tax money paid for it, so yes I can afford it....did I really need it??....I think not
  • 0 Hide
    Zingam_Duo , November 12, 2012 6:39 AM
    freggoin 20 years my grandkids will have that in their cell phones (or phone implants).And they will complain about the slow speed, the high cost ($299 with contract -before inflation-) and the 2PB storage limit :-)Gotta love science !


    Your grandkids will live in mud houses and will use liquid animal fat to light their houses, because you have exhausted the natural resources of the planet and you have not thought about saving and recycling for even a second. :D