Lower Bounds on Quantum Query Complexity

Authors
Publication date 2005
Journal Bulletin of the European Association for Theoretical Computer Science
Volume | Issue number 87
Pages (from-to) 78-103
Number of pages 26
Organisations
  • Interfacultary Research - Institute for Logic, Language and Computation (ILLC)
Abstract Shor's and Grover's famous quantum algorithms for factoring and searching show that quantum computers can solve certain computational problems significantly faster than any classical computer. We discuss here what quantum computers cannot do, and specifically how to prove limits on their computational power. We cover the main known techniques for proving lower bounds, and exemplify and compare the methods.
Document type Article
Note quant-ph/0509153
Published at http://www.eatcs.org/images/bulletin/beatcs87.pdf
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