Optimising Matrix Product State Simulations of Shor's Algorithm

We detail techniques to optimise high-level classical simulations of Shor's quantum factoring algorithm. Chief among these is to examine the entangling properties of the circuit and to effectively map it across the one-dimensional structure of a matrix product state. Compared to previous approa...

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Main Authors: Aidan Dang, Charles D. Hill, Lloyd C. L. Hollenberg
Format: Article
Language:English
Published: Verein zur Förderung des Open Access Publizierens in den Quantenwissenschaften 2019-01-01
Series:Quantum
Online Access:https://quantum-journal.org/papers/q-2019-01-25-116/pdf/
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author Aidan Dang
Charles D. Hill
Lloyd C. L. Hollenberg
author_facet Aidan Dang
Charles D. Hill
Lloyd C. L. Hollenberg
author_sort Aidan Dang
collection DOAJ
description We detail techniques to optimise high-level classical simulations of Shor's quantum factoring algorithm. Chief among these is to examine the entangling properties of the circuit and to effectively map it across the one-dimensional structure of a matrix product state. Compared to previous approaches whose space requirements depend on $r$, the solution to the underlying order-finding problem of Shor's algorithm, our approach depends on its factors. We performed a matrix product state simulation of a 60-qubit instance of Shor's algorithm that would otherwise be infeasible to complete without an optimised entanglement mapping.
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spelling doaj.art-77dfbbd220504ffcae5c35ad938ddb292022-12-22T00:02:55ZengVerein zur Förderung des Open Access Publizierens in den QuantenwissenschaftenQuantum2521-327X2019-01-01311610.22331/q-2019-01-25-11610.22331/q-2019-01-25-116Optimising Matrix Product State Simulations of Shor's AlgorithmAidan DangCharles D. HillLloyd C. L. HollenbergWe detail techniques to optimise high-level classical simulations of Shor's quantum factoring algorithm. Chief among these is to examine the entangling properties of the circuit and to effectively map it across the one-dimensional structure of a matrix product state. Compared to previous approaches whose space requirements depend on $r$, the solution to the underlying order-finding problem of Shor's algorithm, our approach depends on its factors. We performed a matrix product state simulation of a 60-qubit instance of Shor's algorithm that would otherwise be infeasible to complete without an optimised entanglement mapping.https://quantum-journal.org/papers/q-2019-01-25-116/pdf/
spellingShingle Aidan Dang
Charles D. Hill
Lloyd C. L. Hollenberg
Optimising Matrix Product State Simulations of Shor's Algorithm
Quantum
title Optimising Matrix Product State Simulations of Shor's Algorithm
title_full Optimising Matrix Product State Simulations of Shor's Algorithm
title_fullStr Optimising Matrix Product State Simulations of Shor's Algorithm
title_full_unstemmed Optimising Matrix Product State Simulations of Shor's Algorithm
title_short Optimising Matrix Product State Simulations of Shor's Algorithm
title_sort optimising matrix product state simulations of shor s algorithm
url https://quantum-journal.org/papers/q-2019-01-25-116/pdf/
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AT charlesdhill optimisingmatrixproductstatesimulationsofshorsalgorithm
AT lloydclhollenberg optimisingmatrixproductstatesimulationsofshorsalgorithm