Uncomputation: Difference between revisions

Revision as of 12:41, 9 December 2020

Revision as of 16:35, 9 February 2021

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Uncomputation is a fundamental step in [[quantum computing]] algorithms. Whether or not intermediate effects have been uncomputed affects how states interfere with each other when measuring results.<ref>{{Cite journal|arxiv=quant-ph/0209060|last1=Aaronson|first1=Scott|title=Quantum Lower Bound for Recursive Fourier Sampling|journal=Quantum Information and Computation ():, 00|volume=3|issue=2|pages=165–174|year=2002|bibcode=2002quant.ph..9060A}}</ref>

This is primarily motivated by the principle of implicit measurement <ref>Nielsen, Michael; Chuang, Isaac. "Quantum Computation and Quantum Information"</ref>, which states that any value in a temporary register that is not used in any following operation may be considered to have been measured, thus collapsing superposition states.

==References==