Coherent shuttle of electron-spin states

Qubit transfer: Shuttling single spins with quantum dots A technique enables transferring single spin qubits across an array of quantum dots while their phase coherence is preserved. In this manner, spatially separated registers of stationary qubits can be coherently linked, allowing building scalab...

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Autores principales:	Takafumi Fujita, Timothy Alexander Baart, Christian Reichl, Werner Wegscheider, Lieven Mark Koenraad Vandersypen
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/f2e89db30d544fa19688b5b9eb360514
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spelling	oai:doaj.org-article:f2e89db30d544fa19688b5b9eb3605142021-12-02T15:10:12ZCoherent shuttle of electron-spin states10.1038/s41534-017-0024-42056-6387https://doaj.org/article/f2e89db30d544fa19688b5b9eb3605142017-06-01T00:00:00Zhttps://doi.org/10.1038/s41534-017-0024-4https://doaj.org/toc/2056-6387Qubit transfer: Shuttling single spins with quantum dots A technique enables transferring single spin qubits across an array of quantum dots while their phase coherence is preserved. In this manner, spatially separated registers of stationary qubits can be coherently linked, allowing building scalable qubit networks. Scientists at QuTech from Delft University of Technology spatially shuttle qubits by preparing empty quantum dots and adiabatically shuttling electrons through these dots using tailored gate voltage pulses. Through interference measurements, they observe phase oscillations that allow quantifying the fidelity of the shuttling operation. Numerical simulations support the estimated fidelity of single-spin transfer and point at possible improvements for separating entangled spin pairs.Takafumi FujitaTimothy Alexander BaartChristian ReichlWerner WegscheiderLieven Mark Koenraad VandersypenNature PortfolioarticlePhysicsQC1-999Electronic computers. Computer scienceQA75.5-76.95ENnpj Quantum Information, Vol 3, Iss 1, Pp 1-6 (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 Takafumi Fujita Timothy Alexander Baart Christian Reichl Werner Wegscheider Lieven Mark Koenraad Vandersypen Coherent shuttle of electron-spin states
description	Qubit transfer: Shuttling single spins with quantum dots A technique enables transferring single spin qubits across an array of quantum dots while their phase coherence is preserved. In this manner, spatially separated registers of stationary qubits can be coherently linked, allowing building scalable qubit networks. Scientists at QuTech from Delft University of Technology spatially shuttle qubits by preparing empty quantum dots and adiabatically shuttling electrons through these dots using tailored gate voltage pulses. Through interference measurements, they observe phase oscillations that allow quantifying the fidelity of the shuttling operation. Numerical simulations support the estimated fidelity of single-spin transfer and point at possible improvements for separating entangled spin pairs.
format	article
author	Takafumi Fujita Timothy Alexander Baart Christian Reichl Werner Wegscheider Lieven Mark Koenraad Vandersypen
author_facet	Takafumi Fujita Timothy Alexander Baart Christian Reichl Werner Wegscheider Lieven Mark Koenraad Vandersypen
author_sort	Takafumi Fujita
title	Coherent shuttle of electron-spin states
title_short	Coherent shuttle of electron-spin states
title_full	Coherent shuttle of electron-spin states
title_fullStr	Coherent shuttle of electron-spin states
title_full_unstemmed	Coherent shuttle of electron-spin states
title_sort	coherent shuttle of electron-spin states
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/f2e89db30d544fa19688b5b9eb360514
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Coherent shuttle of electron-spin states

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