by Flemming Funch
New Scientist reports some progress in quantum computing. In short, as opposed to normal computers that use bits that can be either on or off, quantum computing uses 'qubits' that can be in several states at once. That opens the door to the rather magical possibility of finding all solutions to a given problem at the same time. Practical applications appear to be far off. The current progress concerned the ability to keep one atom away from interferance, while still being able to read what state it is in.
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