Quantum Search for Gravitational Wave of Massive Black Hole Binaries

Fuente: arXiv
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Autores principales: Guo, Fangzhou, He, Jibo
Formato: Preprint
Publicado: 2025
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author Guo, Fangzhou
He, Jibo
author_facet Guo, Fangzhou
He, Jibo
contents Matched filtering is a common method for detecting gravitational waves. However, the computational costs of searching large template banks limit the efficiency of classical algorithms when searching for massive black hole binary (MBHB) systems. This work explores the application of a quantum matched filtering algorithm based on Grover's algorithm to MBHB signals. Under certain simplifying assumptions, quantum approach can reduce the computational complexity from $O(N)$ to $O(\sqrt{N})$ theoretically, where $N$ is the size of the template bank. Simulated results illustrate the potential reduction in computational costs, while also showing that the performance can degrade in some cases due to instability of the algorithm. These findings reveal both the potential and the limitations of quantum search for MBHB signals, pointing to the importance of developing more robust and stable search strategies alongside realistic modeling in future work.
format Preprint
id arxiv_https___arxiv_org_abs_2505_24459
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Quantum Search for Gravitational Wave of Massive Black Hole Binaries
Guo, Fangzhou
He, Jibo
Instrumentation and Methods for Astrophysics
General Relativity and Quantum Cosmology
Quantum Physics
Matched filtering is a common method for detecting gravitational waves. However, the computational costs of searching large template banks limit the efficiency of classical algorithms when searching for massive black hole binary (MBHB) systems. This work explores the application of a quantum matched filtering algorithm based on Grover's algorithm to MBHB signals. Under certain simplifying assumptions, quantum approach can reduce the computational complexity from $O(N)$ to $O(\sqrt{N})$ theoretically, where $N$ is the size of the template bank. Simulated results illustrate the potential reduction in computational costs, while also showing that the performance can degrade in some cases due to instability of the algorithm. These findings reveal both the potential and the limitations of quantum search for MBHB signals, pointing to the importance of developing more robust and stable search strategies alongside realistic modeling in future work.
title Quantum Search for Gravitational Wave of Massive Black Hole Binaries
topic Instrumentation and Methods for Astrophysics
General Relativity and Quantum Cosmology
Quantum Physics
url https://arxiv.org/abs/2505.24459