Parallelising matrix operations on clusters for an optimal control-based quantum compiler

T. Gradl, A. Spörl, T. Huckle, S. J. Glaser, T. Schulte-Herbrüggen

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

11 Scopus citations

Abstract

Quantum control plays a key role in quantum technology, e.g. for steering quantum hardware systems, spectrometers or superconducting solid-state devices. In terms of computation, quantum systems provide a unique potential for coherent parallelisation that may exponentially speed up algorithms as in Shor's prime factorisation. Translating quantum software into a sequence of classical controls steering the quantum hardware, viz. the quantum compilation task, lends itself to be tackled by optimal control. It is computationally demanding since the classical resources needed grow exponentially with the size of the quantum system. Here we show concepts of parallelisation tailored to run on high-end computer clusters speeding up matrix multiplication, exponentials, and trace evaluations used in numerical quantum control. In systems of 10 spin qubits, the time gain is beyond a factor of 500 on a 128-CPU cluster as compared to standard techniques on a single CPU.

Original languageEnglish
Title of host publicationEuro-Par 2006 Parallel Processing - 12th International Euro-Par Conference, Proceedings
PublisherSpringer Verlag
Pages751-762
Number of pages12
ISBN (Print)3540377832, 9783540377832
DOIs
StatePublished - 2006
Event12th International Euro-Par Conference 2006 - Lisbon, Portugal
Duration: 28 Aug 20061 Sep 2006

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume4128 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Conference

Conference12th International Euro-Par Conference 2006
Country/TerritoryPortugal
CityLisbon
Period28/08/061/09/06

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