Room-temperature polarization of individual nuclear spins in diamond via anisotropic hyperfine coupling and coherent population trapping

dc.contributor.authorJamonneau, P.
dc.contributor.authorDreau, A.
dc.contributor.authorHetet, G.
dc.contributor.authorRoch, J. F.
dc.contributor.authorMaze, J. R.
dc.contributor.authorJacques, V.
dc.date.accessioned2025-01-20T21:01:19Z
dc.date.available2025-01-20T21:01:19Z
dc.date.issued2022
dc.description.abstractWe employ the electronic spin of a single nitrogen-vacancy (NV) defect in diamond to detect and control the quantum state of remote nuclear spins coupled by hyperfine interaction. More precisely, our work focuses on individual C-13 nuclei featuring a moderate hyperfine coupling strength (similar to 1 MHz) with the NV's electron spin. Two different methods providing an efficient room-temperature polarization of these peculiar C-13 nuclear spins are described. The first one is based on a polarization transfer from the NV electron spin to the C-13 nucleus, which is mediated by the anisotropic component of the hyperfine interaction. The second one relies on coherent population trapping (CPT) within a A-type energy-level configuration in the microwave domain, which enables to initialize the C-13 nuclear spin in any quantum state superposition on the Bloch sphere. This CPT protocol is performed in an unusual regime for which relaxation from the excited level of the Lambda-scheme is externally triggered by optical pumping and separated in time from coherent microwave excitations. For these two polarization techniques, we investigate the impact of optical illumination on the nuclear spin polarization efficiency. This work adds new methods to the quantum toolbox used for coherent control of individual nuclear spins in diamond, which might find applications in quantum metrology.
dc.description.funderinternational cooperative program ECOS-CONICYT
dc.fuente.origenWOS
dc.identifier.doi10.1140/epjd/s10053-022-00528-x
dc.identifier.eissn1434-6079
dc.identifier.issn1434-6060
dc.identifier.urihttps://doi.org/10.1140/epjd/s10053-022-00528-x
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/92859
dc.identifier.wosidWOS:000889537900001
dc.issue.numero11
dc.language.isoen
dc.revistaEuropean physical journal d
dc.rightsacceso restringido
dc.titleRoom-temperature polarization of individual nuclear spins in diamond via anisotropic hyperfine coupling and coherent population trapping
dc.typeartículo
dc.volumen76
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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