3-Qubit Circular Quantum Convolution Computation using Fourier Transform with Illustrative Examples

• URL: http://arxiv.org/abs/2205.05727v1
• Date: Wed, 11 May 2022 18:53:43 GMT
• Title: 3-Qubit Circular Quantum Convolution Computation using Fourier Transform with Illustrative Examples
• Authors: Artyom M. Grigoryan and Sos S. Agaian
• Abstract summary: We describe examples for calculating the 1-D circular convolution of signals represented by 3-qubit superpositions. The frequency characteristics of many linear time-invariant systems and filters are well known. The considered method of convolution can be used for these systems in quantum computation.
• Score: 3.6296396308298795
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: In this work, we describe examples for calculating the 1-D circular convolution of signals represented by 3-qubit superpositions. The case is considered, when the discrete Fourier transform of one of the signals is known and calculated in advance and only the QFT of another signal is calculated. The frequency characteristics of many linear time-invariant systems and filters are well known. Therefore, the considered method of convolution can be used for these systems in quantum computation. The ideal low pass and high pass filters are considered and quantum schemes for convolution are presented. The method of the Fourier transform is used with one addition qubit to prepare the quantum superposition for the inverse quantum Fourier transform.

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