Energy-efficient quantum computing

Quantum computers: Energy efficient quantum control with recycled pulses The energy efficiency of a large-scale quantum computer can be improved by using fewer pulses to control more qubits. Joni Ikonen and co-workers from Aalto University (Finland) and Yale University (United States) present a theo...

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Autores principales:	Joni Ikonen, Juha Salmilehto, Mikko Möttönen
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Physics QC1-999 Electronic computers. Computer science QA75.5-76.95
Acceso en línea:	https://doaj.org/article/55abe949d29743cda08d744f0d09df99
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id	oai:doaj.org-article:55abe949d29743cda08d744f0d09df99
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spelling	oai:doaj.org-article:55abe949d29743cda08d744f0d09df992021-12-02T15:10:33ZEnergy-efficient quantum computing10.1038/s41534-017-0015-52056-6387https://doaj.org/article/55abe949d29743cda08d744f0d09df992017-04-01T00:00:00Zhttps://doi.org/10.1038/s41534-017-0015-5https://doaj.org/toc/2056-6387Quantum computers: Energy efficient quantum control with recycled pulses The energy efficiency of a large-scale quantum computer can be improved by using fewer pulses to control more qubits. Joni Ikonen and co-workers from Aalto University (Finland) and Yale University (United States) present a theoretical scheme to manipulate qubits using a single itinerant control pulse. This is in contrast to the current mainstream prototypes where each qubit is usually controlled from room temperature through dedicated transmission lines and control pulses. The study finds that a single pulse can be recycled since its quantum state does not significantly change after interactions with the qubits. Therefore, compared to controlling qubits individually, the recycling method requires in total less energy for gate operations of equal precision. Designs based on similar redistribution of pulses may offer more efficient utilization of the control hardware in future large-scale quantum computers.Joni IkonenJuha SalmilehtoMikko MöttönenNature PortfolioarticlePhysicsQC1-999Electronic computers. Computer scienceQA75.5-76.95ENnpj Quantum Information, Vol 3, Iss 1, Pp 1-7 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Physics QC1-999 Electronic computers. Computer science QA75.5-76.95
spellingShingle	Physics QC1-999 Electronic computers. Computer science QA75.5-76.95 Joni Ikonen Juha Salmilehto Mikko Möttönen Energy-efficient quantum computing
description	Quantum computers: Energy efficient quantum control with recycled pulses The energy efficiency of a large-scale quantum computer can be improved by using fewer pulses to control more qubits. Joni Ikonen and co-workers from Aalto University (Finland) and Yale University (United States) present a theoretical scheme to manipulate qubits using a single itinerant control pulse. This is in contrast to the current mainstream prototypes where each qubit is usually controlled from room temperature through dedicated transmission lines and control pulses. The study finds that a single pulse can be recycled since its quantum state does not significantly change after interactions with the qubits. Therefore, compared to controlling qubits individually, the recycling method requires in total less energy for gate operations of equal precision. Designs based on similar redistribution of pulses may offer more efficient utilization of the control hardware in future large-scale quantum computers.
format	article
author	Joni Ikonen Juha Salmilehto Mikko Möttönen
author_facet	Joni Ikonen Juha Salmilehto Mikko Möttönen
author_sort	Joni Ikonen
title	Energy-efficient quantum computing
title_short	Energy-efficient quantum computing
title_full	Energy-efficient quantum computing
title_fullStr	Energy-efficient quantum computing
title_full_unstemmed	Energy-efficient quantum computing
title_sort	energy-efficient quantum computing
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/55abe949d29743cda08d744f0d09df99
work_keys_str_mv	AT joniikonen energyefficientquantumcomputing AT juhasalmilehto energyefficientquantumcomputing AT mikkomottonen energyefficientquantumcomputing
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Energy-efficient quantum computing

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