Probabilistic magnetometry with a two-spin system in diamond

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dc.contributor.authorCoto, Raul
dc.contributor.authorDinani, Hossein T.
dc.contributor.authorNorambuena, Ariel
dc.contributor.authorChen, Mo
dc.contributor.authorMaze, Jeronimo R.
dc.date.accessioned2025-01-20T22:17:03Z
dc.date.available2025-01-20T22:17:03Z
dc.date.issued2021
dc.description.abstractSolid-state magnetometers like the nitrogen-vacancy (NV) center in diamond have been of paramount importance for the development of quantum sensing with nanoscale spatial resolution. The underlying protocol is a Ramsey sequence, that imprints an external static magnetic field into the phase of the quantum sensor, which is subsequently read out. In this theoretical work we propose a sensing scheme that harnesses the hyperfine coupling between the NV center and a nearby nuclear spin to set a post-selection protocol. We show that concentrating valuable sensing information into a single successful measurement yields an improvement in sensitivity over Ramsey in the range of short transverse relaxation times. By considering realistic experimental conditions, we found that the detection of weak magnetic fields in the mu T range can be achieved with a sensitivity of few tens of nTHz(-1/2) at cryogenic temperature (4 K), and mu THz(-1/2) at room temperature.
dc.fuente.origenWOS
dc.identifier.doi10.1088/2058-9565/abfce1
dc.identifier.issn2058-9565
dc.identifier.urihttps://doi.org/10.1088/2058-9565/abfce1
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/94540
dc.identifier.wosidWOS:000665682900001
dc.issue.numero3
dc.language.isoen
dc.revistaQuantum science and technology
dc.rightsacceso restringido
dc.subjectmagnetometry
dc.subjectNV center
dc.subjectpost-selection
dc.titleProbabilistic magnetometry with a two-spin system in diamond
dc.typeartículo
dc.volumen6
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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