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dc.contributor.authorCappellaro, Paola
dc.contributor.authorHodges, Jonathan S.
dc.contributor.authorGoldstein, Garry
dc.contributor.authorJiang, Liang
dc.contributor.authorMaze, Jeronimo R.
dc.contributor.authorSørensen, A. S.
dc.contributor.authorLukin, Mikhail D.
dc.date.accessioned2012-09-07T16:58:01Z
dc.date.available2012-09-07T16:58:01Z
dc.date.issued2012-03
dc.date.submitted2011-12
dc.identifier.issn1050-2947
dc.identifier.issn1094-1622
dc.identifier.urihttp://hdl.handle.net/1721.1/72570
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.sponsorshipUnited States. Army Research Office (MURI grant no. W911NF-11-1-0400)en_US
dc.description.sponsorshipNational Science Foundation (U.S.).en_US
dc.description.sponsorshipNational Institute of Standards and Technology (U.S.)en_US
dc.description.sponsorshipUnited States. Defense Advanced Research Projects Agency. Quantum Sensors Programen_US
dc.description.sponsorshipDavid & Lucile Packard Foundationen_US
dc.description.sponsorshipNew Brunswick Research and Productivity Council (grant nos. 2011CBA00301 and 2011CBA00300)en_US
dc.language.isoen_US
dc.publisherAmerican Physical Societyen_US
dc.relation.isversionofhttp://dx.doi.org/10.1103/PhysRevA.85.032336en_US
dc.rightsArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.en_US
dc.sourceAPSen_US
dc.titleEnvironment-assisted metrology with spin qubitsen_US
dc.typeArticleen_US
dc.identifier.citationCappellaro, P. et al. “Environment-assisted Metrology with Spin Qubits.” Physical Review A 85.3 (2012): 032336. Copyright 2012 American Physical Society.en_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Nuclear Science and Engineeringen_US
dc.contributor.approverCappellaro, Paola
dc.contributor.mitauthorCappellaro, Paola
dc.contributor.mitauthorHodges, Jonathan S.
dc.relation.journalPhysical Review Aen_US
dc.eprint.versionFinal published versionen_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dspace.orderedauthorsCappellaro, P.; Goldstein, G.; Hodges, J.; Jiang, L.; Maze, J.; Sørensen, A.; Lukin, M.en
dc.identifier.orcidhttps://orcid.org/0000-0003-3207-594X
dc.identifier.orcidhttps://orcid.org/0000-0002-3969-3604
mit.licensePUBLISHER_POLICYen_US
mit.metadata.statusComplete


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