Range dependent Hamiltonian Algorithm for numerical QUBO formulation

Fuente: arXiv
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Main Authors: Lee, Hyunju, Jun, Kyungtaek
Format: Preprint
Published: 2022
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author Lee, Hyunju
Jun, Kyungtaek
author_facet Lee, Hyunju
Jun, Kyungtaek
contents With the advent and development of quantum computers, various quantum algorithms that can solve linear equations and eigenvalues faster than classical computers have been developed. The Harrow-Hassidim-Lloyd algorithm is an algorithm that can solve linear equations in a gate model quantum computer. Still, it is constrained by the use of quantum RAM and the size limit of the matrix according to the total number of qubits in the quantum computer. Recently, Jun and Lee developed a QUBO model for solving linear systems and eigenvalue problems in the quantum computer. However, even though their model uses 2048 qubits, the number of qubits for variables that can be used for the problem is only 64. To solve this problem, we introduce an algorithm that can be used by dividing the size of the entire domain according to the number of qubits. We also form a QUBO model related to each subregion.
format Preprint
id arxiv_https___arxiv_org_abs_2202_07692
institution arXiv
publishDate 2022
record_format arxiv
spellingShingle Range dependent Hamiltonian Algorithm for numerical QUBO formulation
Lee, Hyunju
Jun, Kyungtaek
Quantum Physics
With the advent and development of quantum computers, various quantum algorithms that can solve linear equations and eigenvalues faster than classical computers have been developed. The Harrow-Hassidim-Lloyd algorithm is an algorithm that can solve linear equations in a gate model quantum computer. Still, it is constrained by the use of quantum RAM and the size limit of the matrix according to the total number of qubits in the quantum computer. Recently, Jun and Lee developed a QUBO model for solving linear systems and eigenvalue problems in the quantum computer. However, even though their model uses 2048 qubits, the number of qubits for variables that can be used for the problem is only 64. To solve this problem, we introduce an algorithm that can be used by dividing the size of the entire domain according to the number of qubits. We also form a QUBO model related to each subregion.
title Range dependent Hamiltonian Algorithm for numerical QUBO formulation
topic Quantum Physics
url https://arxiv.org/abs/2202.07692