Coherence of spin qubits in silicon

Given the effectiveness of semiconductor devices for classical computation one is naturally led to consider semiconductor systems for solid state quantum information processing. Semiconductors are particularly suitable where local control of electric fields and charge transport are required. Convent...

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Main Authors: Tyryshkin, A, Morton, J, Benjamin, S, Ardavan, A, Briggs, G, Ager, J, Lyon, SA
Format: Journal article
Language:English
Published: 2006
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author Tyryshkin, A
Morton, J
Benjamin, S
Ardavan, A
Briggs, G
Ager, J
Lyon, SA
author_facet Tyryshkin, A
Morton, J
Benjamin, S
Ardavan, A
Briggs, G
Ager, J
Lyon, SA
author_sort Tyryshkin, A
collection OXFORD
description Given the effectiveness of semiconductor devices for classical computation one is naturally led to consider semiconductor systems for solid state quantum information processing. Semiconductors are particularly suitable where local control of electric fields and charge transport are required. Conventional semiconductor electronics is built upon these capabilities and has demonstrated scaling to large complicated arrays of interconnected devices. However, the requirements for a quantum computer are very different from those for classical computation, and it is not immediately obvious how best to build one in a semiconductor. One possible approach is to use spins as qubits: of nuclei, of electrons, or both in combination. Long qubit coherence times are a prerequisite for quantum computing, and in this paper we will discuss measurements of spin coherence in silicon. The results are encouraging - both electrons bound to donors and the donor nuclei exhibit low decoherence under the right circumstances. Doped silicon thus appears to pass the first test on the road to a quantum computer. © IOP 2006 Publishing Ltd.
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spelling oxford-uuid:f23a3aad-f735-43de-9f5c-205f0c75a7292022-03-27T12:01:53ZCoherence of spin qubits in siliconJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:f23a3aad-f735-43de-9f5c-205f0c75a729EnglishSymplectic Elements at Oxford2006Tyryshkin, AMorton, JBenjamin, SArdavan, ABriggs, GAger, JLyon, SAGiven the effectiveness of semiconductor devices for classical computation one is naturally led to consider semiconductor systems for solid state quantum information processing. Semiconductors are particularly suitable where local control of electric fields and charge transport are required. Conventional semiconductor electronics is built upon these capabilities and has demonstrated scaling to large complicated arrays of interconnected devices. However, the requirements for a quantum computer are very different from those for classical computation, and it is not immediately obvious how best to build one in a semiconductor. One possible approach is to use spins as qubits: of nuclei, of electrons, or both in combination. Long qubit coherence times are a prerequisite for quantum computing, and in this paper we will discuss measurements of spin coherence in silicon. The results are encouraging - both electrons bound to donors and the donor nuclei exhibit low decoherence under the right circumstances. Doped silicon thus appears to pass the first test on the road to a quantum computer. © IOP 2006 Publishing Ltd.
spellingShingle Tyryshkin, A
Morton, J
Benjamin, S
Ardavan, A
Briggs, G
Ager, J
Lyon, SA
Coherence of spin qubits in silicon
title Coherence of spin qubits in silicon
title_full Coherence of spin qubits in silicon
title_fullStr Coherence of spin qubits in silicon
title_full_unstemmed Coherence of spin qubits in silicon
title_short Coherence of spin qubits in silicon
title_sort coherence of spin qubits in silicon
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