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arXiv:1912.02207quant-ph

Playing Pool with $|ψ\rangle$: from Bouncing Billiards to Quantum Search

Adam R. Brown

Early discovery. Linked by one identifiable commenter. This paper is outside the main ranking; a mention is not an endorsement.

Abstract

In "Playing Pool with $π$", Galperin invented an extraordinary method to learn the digits of $π$ by counting the collisions of billiard balls. Here I demonstrate an exact isomorphism between Galperin's bouncing billiards and Grover's algorithm for quantum search. This provides an illuminating way to visualize Grover's algorithm.

arXiv comments
11 pages, 8 figures, $d$ billiards; v2: minor improvements, as published
Journal reference
Quantum 4, 357 (2020)
DOI
doi:10.22331/q-2020-11-02-357
Subjects
quant-phQuantum Physics hep-thHigh Energy Physics, Theory

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Linked by 1 identifiable commenter in 1 comment across 1 thread, from Sep 2020 to Sep 2020. Found in 1 HN submission from Aug 2020 to Aug 2020. Open submission discussions.

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Discussed in comments1 thread

  1. What Is Math? 1 comment

    • This is wonderful. I love when memes breed philosophy. We're teaching math wrong. It's as plain as day to me. Or rather we teach the wrong maths to the wrong students. If Marcie can't find a useful application on day one of the "theory" she learns in school, what is the point?…

      ArtWombView on HNParent context

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