Following Forrelation -- Quantum Algorithms in Exploring Boolean Functions' Spectra Article Swipe

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Suman Dutta , Subhamoy Maitra , Chandra Sekhar Mukherjee · YOU? · · 2021 · Open Access · · DOI: https://doi.org/10.48550/arxiv.2104.12212

Here we revisit the quantum algorithms for obtaining Forrelation [Aaronson et al, 2015] values to evaluate some of the well-known cryptographically significant spectra of Boolean functions, namely the Walsh spectrum, the cross-correlation spectrum and the autocorrelation spectrum. We introduce the existing 2-fold Forrelation formulation with bent duality based promise problems as desirable instantiations. Next we concentrate on the $3$-fold version through two approaches. First, we judiciously set-up some of the functions in $3$-fold Forrelation, so that given an oracle access, one can sample from the Walsh Spectrum of $f$. Using this, we obtain improved results than what we obtain from the Deutsch-Jozsa algorithm, and in turn it has implications in resiliency checking. Furthermore, we use similar idea to obtain a technique in estimating the cross-correlation (and thus autocorrelation) value at any point, improving upon the existing algorithms. Finally, we tweak the quantum algorithm with superposition of linear functions to obtain a cross-correlation sampling technique. To the best of our knowledge, this is the first cross-correlation sampling algorithm with constant query complexity. This also provides a strategy to check if two functions are uncorrelated of degree $m$. We further modify this using Dicke states so that the time complexity reduces, particularly for constant values of $m$.

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preprint

Language

en

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https://doi.org/10.48550/arxiv.2104.12212

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green

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10

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https://openalex.org/W4301180540

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https://openalex.org/W4301180540

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DOI

https://doi.org/10.48550/arxiv.2104.12212

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Title

Following Forrelation -- Quantum Algorithms in Exploring Boolean Functions' Spectra

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preprint

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en

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Publication year

2021

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2021-04-25

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Suman Dutta, Subhamoy Maitra, Chandra Sekhar Mukherjee

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https://doi.org/10.48550/arxiv.2104.12212

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Yes

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green

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https://doi.org/10.48550/arxiv.2104.12212

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Concepts

Autocorrelation, Boolean function, Mathematics, Algorithm, Superposition principle, Oracle, Quantum algorithm, Spectrum (functional analysis), Quantum, Discrete mathematics, Computer science, Quantum mechanics, Statistics, Mathematical analysis, Physics, Software engineering

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0

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10

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