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Conference Paper: Deterministic preparation of Dicke states of donor nuclear spins in silicon

TitleDeterministic preparation of Dicke states of donor nuclear spins in silicon
Authors
Issue Date2012
PublisherAmerican Physical Society.
Citation
The 2012 March Meeting of the American Physical Society (APS), Boston, MA., 27 February-2 March 2012. How to Cite?
AbstractWe present a scheme to deterministically prepare various symmetric and asymmetric Dicke states for donor nuclear spins in silicon. The state preparation is realized by cooperative pumping of nuclear spins by coupled donor electrons, and the required controls are in situ to the prototype Kane's architecture for quantum computation. This scheme only requires a sub-gigahertz donor exchange coupling which can be achieved without atomically precise donor placement, hence it could be a practical way to prepare multipartite entanglement of spins in silicon with current technology. All desired Dicke states appear as the steady state under various pumping scenarios and therefore the preparation is robust and does not require accurate temporal controls. Numerical simulations with realistic parameters show that Dicke states of 10 - 20 qubits can be prepared with high fidelity in the presence of decoherence and undesired dynamics.
DescriptionAbstract no. X29.009
Persistent Identifierhttp://hdl.handle.net/10722/165692

 

DC FieldValueLanguage
dc.contributor.authorLuo, Yen_US
dc.contributor.authorYu, Hen_US
dc.contributor.authorYao, Wen_US
dc.date.accessioned2012-09-20T08:22:13Z-
dc.date.available2012-09-20T08:22:13Z-
dc.date.issued2012en_US
dc.identifier.citationThe 2012 March Meeting of the American Physical Society (APS), Boston, MA., 27 February-2 March 2012.en_US
dc.identifier.urihttp://hdl.handle.net/10722/165692-
dc.descriptionAbstract no. X29.009-
dc.description.abstractWe present a scheme to deterministically prepare various symmetric and asymmetric Dicke states for donor nuclear spins in silicon. The state preparation is realized by cooperative pumping of nuclear spins by coupled donor electrons, and the required controls are in situ to the prototype Kane's architecture for quantum computation. This scheme only requires a sub-gigahertz donor exchange coupling which can be achieved without atomically precise donor placement, hence it could be a practical way to prepare multipartite entanglement of spins in silicon with current technology. All desired Dicke states appear as the steady state under various pumping scenarios and therefore the preparation is robust and does not require accurate temporal controls. Numerical simulations with realistic parameters show that Dicke states of 10 - 20 qubits can be prepared with high fidelity in the presence of decoherence and undesired dynamics.-
dc.languageengen_US
dc.publisherAmerican Physical Society.-
dc.relation.ispartofAPS March Meeting 2012en_US
dc.rightsAPS March Meeting 2012. Copyright © American Physical Society.-
dc.titleDeterministic preparation of Dicke states of donor nuclear spins in siliconen_US
dc.typeConference_Paperen_US
dc.identifier.emailYu, H: yuhongyi@hku.hken_US
dc.identifier.emailYao, W: wangyao@hku.hken_US
dc.identifier.authorityYao, W=rp00827en_US
dc.description.naturelink_to_OA_fulltext-
dc.identifier.hkuros207158en_US
dc.publisher.placeUnited States-
dc.description.otherThe 2012 March Meeting of the American Physical Society (APS), Boston, MA., 27 February-2 March 2012.-

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