Route-Forcing: Scalable Quantum Circuit Mapping for Scalable Quantum Computing Architectures

Fuente: arXiv
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Auteurs principaux: Escofet, Pau, Gonzalvo, Alejandro, Alarcón, Eduard, Almudéver, Carmen G., Abadal, Sergi
Format: Preprint
Publié: 2024
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author Escofet, Pau
Gonzalvo, Alejandro
Alarcón, Eduard
Almudéver, Carmen G.
Abadal, Sergi
author_facet Escofet, Pau
Gonzalvo, Alejandro
Alarcón, Eduard
Almudéver, Carmen G.
Abadal, Sergi
contents Quantum computers are expected to scale in size to close the gap that currently exists between quantum algorithms and quantum hardware. To this end, quantum compilation techniques must scale along with the hardware constraints, shifting the current paradigm of obtaining an optimal compilation to relying on heuristics that allow for a fast solution, even though the quality of such a solution may not be optimal. Significant concerns arise as the execution time of current mapping techniques experiences a notable increase when applied to quantum computers with a high number of qubits. In this work, we present Route-Forcing, a quantum circuit mapping algorithm that shows an average speedup of $3.7\times$ compared to the state-of-the-art scalable techniques, reducing the depth of the mapped circuit by $4.7 \times$ at the expense of adding $1.3 \times$ more SWAP gates. Moreover, the proposed mapping algorithm is adapted and tuned for what is expected to be the next generation of quantum computers, in which different processors are interconnected to increase the total number of qubits, allowing for more complex computations.
format Preprint
id arxiv_https___arxiv_org_abs_2407_17306
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Route-Forcing: Scalable Quantum Circuit Mapping for Scalable Quantum Computing Architectures
Escofet, Pau
Gonzalvo, Alejandro
Alarcón, Eduard
Almudéver, Carmen G.
Abadal, Sergi
Quantum Physics
Quantum computers are expected to scale in size to close the gap that currently exists between quantum algorithms and quantum hardware. To this end, quantum compilation techniques must scale along with the hardware constraints, shifting the current paradigm of obtaining an optimal compilation to relying on heuristics that allow for a fast solution, even though the quality of such a solution may not be optimal. Significant concerns arise as the execution time of current mapping techniques experiences a notable increase when applied to quantum computers with a high number of qubits. In this work, we present Route-Forcing, a quantum circuit mapping algorithm that shows an average speedup of $3.7\times$ compared to the state-of-the-art scalable techniques, reducing the depth of the mapped circuit by $4.7 \times$ at the expense of adding $1.3 \times$ more SWAP gates. Moreover, the proposed mapping algorithm is adapted and tuned for what is expected to be the next generation of quantum computers, in which different processors are interconnected to increase the total number of qubits, allowing for more complex computations.
title Route-Forcing: Scalable Quantum Circuit Mapping for Scalable Quantum Computing Architectures
topic Quantum Physics
url https://arxiv.org/abs/2407.17306