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Conference Paper: Many-body singlets of nuclear spins
Title | Many-body singlets of nuclear spins |
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Authors | |
Issue Date | 2011 |
Publisher | American 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? |
Abstract | We 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. |
Description | Session V27: Focus Session: Semiconductor Qubits- Dynamic Decoupling, Dephasing, and Relaxation: abstract ID: BAPS.2011.MAR.V27.12 |
Persistent Identifier | http://hdl.handle.net/10722/197352 |
DC Field | Value | Language |
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dc.contributor.author | Yao, W | en_US |
dc.date.accessioned | 2014-05-23T02:43:48Z | - |
dc.date.available | 2014-05-23T02:43:48Z | - |
dc.date.issued | 2011 | en_US |
dc.identifier.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 | en_US |
dc.identifier.uri | http://hdl.handle.net/10722/197352 | - |
dc.description | Session V27: Focus Session: Semiconductor Qubits- Dynamic Decoupling, Dephasing, and Relaxation: abstract ID: BAPS.2011.MAR.V27.12 | - |
dc.description.abstract | We 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.language | eng | en_US |
dc.publisher | American Physical Society. The Bulletin's web site is located at http://meeting.aps.org/Meeting/MAR11/Content/2061 | - |
dc.relation.ispartof | Bulletin of the American Physical Society | en_US |
dc.title | Many-body singlets of nuclear spins | en_US |
dc.type | Conference_Paper | en_US |
dc.identifier.email | Yao, W: wangyao@hkucc.hku.hk | en_US |
dc.identifier.authority | Yao, W=rp00827 | en_US |
dc.description.nature | link_to_OA_fulltext | - |
dc.identifier.hkuros | 185587 | en_US |
dc.identifier.volume | 56 | - |
dc.identifier.issue | 1 | - |
dc.publisher.place | United States | - |