Quantum lower bound for sorting

Preprint English OPEN
Shi, Yaoyun;
(2000)
  • Subject: Quantum Physics

We prove that \Omega(n log(n)) comparisons are necessary for any quantum algorithm that sorts n numbers with high success probability and uses only comparisons. If no error is allowed, at least 0.110nlog_2(n) - 0.067n + O(1) comparisons must be made. The previous known ... View more
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