[2207.12949] QFT-based Homogenization
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Mathematics > Numerical Analysis

arXiv:2207.12949 (math)
[Submitted on 26 Jul 2022]

Title:QFT-based Homogenization

Authors:Felix Givois, Matthias Kabel, Nicolas Gauger
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Abstract:Efficient numerical characterization is a key problem in composite material analysis. To follow accuracy improvement in image tomography, memory efficient methods of numerical characterization have been developed. Among them, an FFT based solver has been proposed by Moulinec and Suquet (1994,1998) bringing down numerical characterization complexity to the FFT complexity. Nevertheless, recent development of tomography sensors made memory requirement and calculation time reached another level. To avoid this bottleneck, the new leaps in the field of Quantum Computing have been used. This paper will present the application of the Quantum Fourier Transform (QFT) to replace the Fast Fourier Transform (FFT) in Moulinec and Suquet algorithm. It will mainly focused on how to read out Fourier coefficients stored in a quantum state. First, a reworked Hadamard test algorithm applied with Most likelihood amplitude estimation (MLQAE) is used to determine the quantum coefficients. Second, an improvement avoiding Hadamard test is presented in case of Material characterization on mirrored domain. Finally, this last algorithm is applied to Material homogenization to determine effective stiffness of basic geometries.
Comments: 21 pages, 27 figures
Subjects: Numerical Analysis (math.NA)
Cite as: arXiv:2207.12949 [math.NA]
  (or arXiv:2207.12949v1 [math.NA] for this version)
  https://doi.org/10.48550/arXiv.2207.12949

Submission history

From: Felix Givois [view email]
[v1] Tue, 26 Jul 2022 14:52:52 UTC (94 KB)
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