Putting It All Together -Big factors that impact the performance
Watch Rodney Van Meter explain the factors that drive the performance of Shor's algorithm.
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Today’s best classical computers and algorithm would require the lifetime of the universe to factor a number that is 2000 bits long. Even the apparently exponential gain of Moore’s law does not get us a big improvement in the overall performance.
Can a quantum computer factor a large number in seconds? Ultimately we have these three big factors that impact the performance, we have the clock speed of the system itself, our ability to make good algorithm that executes the modular exponentiation part and finally the architecture of the quantum computer itself.