Entanglement distribution for a practical quantum-dot-based quantum processor architecture

We propose a quantum dot (QD) architecture for enabling universal quantum information processing. Quantum registers, consisting of arrays of vertically stacked self-assembled semiconductor QDs, are connected by chains of in-plane self-assembled dots. We propose an entanglement distributor, a device...

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Main Authors: Spiller, T, D'Amico, I, Lovett, B
Format: Journal article
Published: IOP Publishing 2007
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author Spiller, T
D'Amico, I
Lovett, B
author_facet Spiller, T
D'Amico, I
Lovett, B
author_sort Spiller, T
collection OXFORD
description We propose a quantum dot (QD) architecture for enabling universal quantum information processing. Quantum registers, consisting of arrays of vertically stacked self-assembled semiconductor QDs, are connected by chains of in-plane self-assembled dots. We propose an entanglement distributor, a device for producing and distributing maximally entangled qubits on demand, communicated through in-plane dot chains. This enables the transmission of entanglement to spatially separated register stacks, providing a resource for the realization of a sizeable quantum processor built from coupled register stacks of practical size. Our entanglement distributor could be integrated into many of the present proposals for self-assembled QD-based quantum computation (QC). Our device exploits the properties of simple, relatively short, spin-chains and does not require microcavities. Utilizing the properties of self-assembled QDs, after distribution the entanglement can be mapped into relatively long-lived spin qubits and purified, providing a flexible, distributed, off-line resource.
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spelling oxford-uuid:055c8a73-9744-4ee9-b4d6-38214816cdbb2022-03-26T08:56:44ZEntanglement distribution for a practical quantum-dot-based quantum processor architectureJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:055c8a73-9744-4ee9-b4d6-38214816cdbbSymplectic Elements at OxfordIOP Publishing2007Spiller, TD'Amico, ILovett, BWe propose a quantum dot (QD) architecture for enabling universal quantum information processing. Quantum registers, consisting of arrays of vertically stacked self-assembled semiconductor QDs, are connected by chains of in-plane self-assembled dots. We propose an entanglement distributor, a device for producing and distributing maximally entangled qubits on demand, communicated through in-plane dot chains. This enables the transmission of entanglement to spatially separated register stacks, providing a resource for the realization of a sizeable quantum processor built from coupled register stacks of practical size. Our entanglement distributor could be integrated into many of the present proposals for self-assembled QD-based quantum computation (QC). Our device exploits the properties of simple, relatively short, spin-chains and does not require microcavities. Utilizing the properties of self-assembled QDs, after distribution the entanglement can be mapped into relatively long-lived spin qubits and purified, providing a flexible, distributed, off-line resource.
spellingShingle Spiller, T
D'Amico, I
Lovett, B
Entanglement distribution for a practical quantum-dot-based quantum processor architecture
title Entanglement distribution for a practical quantum-dot-based quantum processor architecture
title_full Entanglement distribution for a practical quantum-dot-based quantum processor architecture
title_fullStr Entanglement distribution for a practical quantum-dot-based quantum processor architecture
title_full_unstemmed Entanglement distribution for a practical quantum-dot-based quantum processor architecture
title_short Entanglement distribution for a practical quantum-dot-based quantum processor architecture
title_sort entanglement distribution for a practical quantum dot based quantum processor architecture
work_keys_str_mv AT spillert entanglementdistributionforapracticalquantumdotbasedquantumprocessorarchitecture
AT damicoi entanglementdistributionforapracticalquantumdotbasedquantumprocessorarchitecture
AT lovettb entanglementdistributionforapracticalquantumdotbasedquantumprocessorarchitecture