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Quantum circuits for OR and AND of OR's

H. Barnum, H. J. Bernstein, L. Spector, Quantum circuits for OR and AND of OR's. CSTR-00-014, Department of Computer Science, University of Bristol. August 2000. PDF, 234 Kbytes.

Abstract

We give the first quantum circuit, derived with the aid of genetic programming, for computing $f(0)$ OR $f(1)$ more reliably than is classically possible with a single evaluation of the function. OR therefore joins XOR (i.e. parity, $f(0) \oplus f(1)$) to give the full set of logical connectives (up to relabeling of inputs and outputs) for which there is quantum speedup.

Bibtex entry.

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