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Milestone algorithm runs on quantum computer

Twenty-year-old idea revealed the potential of quantum problem solving

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4:52pm, November 13, 2014

A 20-year-old algorithm that demonstrated the benefit of using quantum mechanics to solve certain problems has finally been run on a quantum computer.

Simon’s algorithm, proposed by computer scientist Daniel Simon in 1994, provides instructions for a computer to determine whether a black box returns a distinct output for every possible input. It was the first example of problem-solving software that quantum computers should be able to execute exponentially faster than conventional computers as the problem gets harder.

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