May/June 2008
Riding D-Wave
A pioneer of quantum computing asks: Has a Canadian startup really demonstrated a prototype for a working, commercially viable quantum computer?
By Seth Lloyd
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Cool computer: A device known as a dilution refrigerator (shown above) is used to initialize D Wave’s quantum computer, bringing it to its ground state by cooling it to near absolute zero.
Credit: Kristopher Grunert |
Computers process information by breaking it down into the smallest possible chunks, called "bits." A bit represents the distinction between two possibilities: True and False, Yes and No, or, as they are conventionally represented, 1 and 0.
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Massachusetts Institute of Technology