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Critique Computing - Quantum Computing with Ions By...

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“Quantum Computing with Ions” By Christopher R. Monroe and David J. Wineland Scientific American August 2008 Pages 64-71
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Using ions in order to create “Herculean” computers is a very interesting concept. According to researchers, these computers would be capable of completing tasks that were otherwise thought impossible. Unfortunately, though, these computers are easier said than done. The idea of using ions brings with it several large complications. The biggest of which is that they need to be given space from their environment in order to avoid decoherence, but at the same time close enough to interact and be measured. The thing that makes these “qubits,” as they are called, so interesting is that unlike traditional computers that simply use 0’s and 1’s, qubits can also be 00 or 11. This provides for enormous potential. A computer with N number of qubits would be able to process 2^ N numbers. This quickly becomes and astronomical amount. The next obstacle to creating these computers is the logic gate.
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