Quantum Algorithms Revisited
Quantum Physics
2009-10-30 v1
Abstract
Quantum computers use the quantum interference of different computational paths to enhance correct outcomes and suppress erroneous outcomes of computations. A common pattern underpinning quantum algorithms can be identified when quantum computation is viewed as multi-particle interference. We use this approach to review (and improve) some of the existing quantum algorithms and to show how they are related to different instances of quantum phase estimation. We provide an explicit algorithm for generating any prescribed interference pattern with an arbitrary precision.
Cite
@article{arxiv.quant-ph/9708016,
title = {Quantum Algorithms Revisited},
author = {Richard Cleve and Artur Ekert and Chiara Macchiavello and Michele Mosca},
journal= {arXiv preprint arXiv:quant-ph/9708016},
year = {2009}
}
Comments
18 pages, LaTeX, 7 figures. Submitted to Proc. Roy. Soc. Lond. A