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dc.contributor.authorCappellaro, P.
dc.contributor.authorGoldstein, G.
dc.contributor.authorHodges, J. S.
dc.contributor.authorJiang, L.
dc.contributor.authorMaze, J. R.
dc.contributor.authorSørensen, A. S.
dc.contributor.authorLukin, Mikhail D.
dc.date.accessioned2014-03-06T21:17:27Z
dc.date.issued2012
dc.identifierQuick submit: 2014-02-24T00:45:57-05:00
dc.identifier.citationCappellaro, P., G. Goldstein, J. S. Hodges, L. Jiang, J. R. Maze, A. S. Sørensen, and M. D. Lukin. 2012. “Environment-Assisted Metrology with Spin Qubits.” Phys. Rev. A 85 (3) (March): 032336.en_US
dc.identifier.issn1050-2947en_US
dc.identifier.urihttp://nrs.harvard.edu/urn-3:HUL.InstRepos:11870345
dc.description.abstractWe investigate the sensitivity of a recently proposed method for precision measurement [Phys. Rev. Lett. 106, 140502 (2011)], focusing on an implementation based on solid-state spin systems. The scheme amplifies a quantum sensor response to weak external fields by exploiting its coupling to spin impurities in the environment. We analyze the limits to the sensitivity due to decoherence and propose dynamical decoupling schemes to increase the spin coherence time. The sensitivity is also limited by the environment spin polarization; therefore, we discuss strategies to polarize the environment spins and present a method to extend the scheme to the case of zero polarization. The coherence time and polarization determine a figure of merit for the environment's ability to enhance the sensitivity compared to echo-based sensing schemes. This figure of merit can be used to engineer optimized samples for high-sensitivity nanoscale magnetic sensing, such as diamond nanocrystals with controlled impurity density.en_US
dc.description.sponsorshipPhysicsen_US
dc.language.isoen_USen_US
dc.publisherAmerican Physical Society (APS)en_US
dc.relation.isversionofdoi:10.1103/physreva.85.032336en_US
dash.licenseLAA
dc.titleEnvironment-assisted metrology with spin qubitsen_US
dc.typeJournal Articleen_US
dc.date.updated2014-02-24T05:47:37Z
dc.description.versionVersion of Recorden_US
dc.rights.holderMikhail Lukin
dc.relation.journalPhysical Review Aen_US
dash.depositing.authorLukin, Mikhail D.
dc.date.available2014-03-06T21:17:27Z
dc.identifier.doi10.1103/physreva.85.032336*
workflow.legacycommentsFAR 2013en_US
dash.contributor.affiliatedLukin, Mikhail


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