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A "Photon Machine Gun" For Quantum Computers

An anonymous reader writes "Generating entangled photons in a reliable way is impossible right now, stalling the development of the optical quantum computers that would use entangled photons as quantum bits (qubits). Because entangled photons can only be produced at random — which takes time — the most powerful optical quantum computing device use only 6 qubits. UK and Israeli quantum physicists have designed a blueprint for a 'quantum machine gun' that fires out barrages of entangled photons on demand. They think within a few years this device will be built, and could lead to quantum computing using 20 to 30 qubits. Every additional qubit doubles the computing power, so these quantum computers could outperform any existing classical computer, the researchers say. The quantum machine gun is described as 'one of the most exciting theoretical proposals I've read in five years' by a leading quantum physicist." The research was published in Physical Review Letters earlier this month.

2 of 143 comments (clear)

  1. Re:Not particularly useful against an insurgency by Anonymous Coward · · Score: -1, Offtopic

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  2. Anglo-Saxon and Jewish Intelligence by Anonymous Coward · · Score: -1, Offtopic
    Reading the original article causes us to think: Why have Europeans (including ethnic Jews) accomplished so many breakthroughs in technology?

    Certainly, the Europeans dominate the winners of Noble Prizes in science.

    Germans invented the jet aircraft, the guided missile, the computer, calculus, etc. The English invented calculus. The French developed the metric system. Also, the Japanese have done quite well. They invented the blue light-emitting diode, hybrid engines for cars, process technologies for cost effectively producing large LCD screens, etc.

    The one group that is missing from this arena of technical accomplishments is Africans and African-Americans. Why are they absent?

    We know that African IQ is small than Japanese/European IQ by about 20 points. Can this large difference in IQ explain the gross failure of all societies dominated by Africans?