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Conference Paper: Many-body singlets of nuclear spins

TitleMany-body singlets of nuclear spins
Authors
Issue Date2011
PublisherAmerican Physical Society. The Bulletin's web site is located at http://meeting.aps.org/Meeting/MAR11/Content/2061
Citation
The 2011 March Meeting of the American Physical Society (APS), Dallas, TX., 21-25 March 2011. In Bulletin of the American Physical Society, 2011, v. 56 n. 1 How to Cite?
AbstractWe show that dynamic spin polarization by collective raising and lowering operators can drive a spin ensemble from arbitrary initial state to many-body singlets, the zero-collective-spin states with large scale entanglement. For an ensemble of N arbitrary spins, both the variance of the collective spin and the number of unentangled spins can be reduced to O(1) (versus the typical value of O(N)), and many-body singlets can be occupied with a population of » 20% independent of the ensemble size. We implement this approach in a mesoscopic ensemble of nuclear spins through dynamic nuclear spin polarization by an electron. The result is of two-fold significance for spin quantum technology: (1) a resource of entanglement for nuclear spin based quantum information processing; (2) a cleaner surrounding and less quantum noise for the electron spin as the environmental spin moments are effectively annihilated.
DescriptionSession V27: Focus Session: Semiconductor Qubits- Dynamic Decoupling, Dephasing, and Relaxation: abstract ID: BAPS.2011.MAR.V27.12
Persistent Identifierhttp://hdl.handle.net/10722/197352

 

DC FieldValueLanguage
dc.contributor.authorYao, Wen_US
dc.date.accessioned2014-05-23T02:43:48Z-
dc.date.available2014-05-23T02:43:48Z-
dc.date.issued2011en_US
dc.identifier.citationThe 2011 March Meeting of the American Physical Society (APS), Dallas, TX., 21-25 March 2011. In Bulletin of the American Physical Society, 2011, v. 56 n. 1en_US
dc.identifier.urihttp://hdl.handle.net/10722/197352-
dc.descriptionSession V27: Focus Session: Semiconductor Qubits- Dynamic Decoupling, Dephasing, and Relaxation: abstract ID: BAPS.2011.MAR.V27.12-
dc.description.abstractWe show that dynamic spin polarization by collective raising and lowering operators can drive a spin ensemble from arbitrary initial state to many-body singlets, the zero-collective-spin states with large scale entanglement. For an ensemble of N arbitrary spins, both the variance of the collective spin and the number of unentangled spins can be reduced to O(1) (versus the typical value of O(N)), and many-body singlets can be occupied with a population of » 20% independent of the ensemble size. We implement this approach in a mesoscopic ensemble of nuclear spins through dynamic nuclear spin polarization by an electron. The result is of two-fold significance for spin quantum technology: (1) a resource of entanglement for nuclear spin based quantum information processing; (2) a cleaner surrounding and less quantum noise for the electron spin as the environmental spin moments are effectively annihilated.-
dc.languageengen_US
dc.publisherAmerican Physical Society. The Bulletin's web site is located at http://meeting.aps.org/Meeting/MAR11/Content/2061-
dc.relation.ispartofBulletin of the American Physical Societyen_US
dc.rightsBulletin of the American Physical Society. Copyright © American Physical Society.-
dc.titleMany-body singlets of nuclear spinsen_US
dc.typeConference_Paperen_US
dc.identifier.emailYao, W: wangyao@hkucc.hku.hken_US
dc.identifier.authorityYao, W=rp00827en_US
dc.description.naturelink_to_OA_fulltext-
dc.identifier.hkuros185587en_US
dc.identifier.volume56-
dc.identifier.issue1-
dc.publisher.placeUnited States-

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