6533b7d0fe1ef96bd125a382

RESEARCH PRODUCT

Robust optical readout and characterization of nuclear spin transitions in nitrogen-vacancy ensembles in diamond

Tony IvanovVladimir S. MalinovskyIlja FescenkoDmitry BudkerVictor M. AcostaMarcus W. DohertyFredrik K. FatemiAndrey JarmolaAndrey Jarmola

subject

Quantum PhysicsMaterials scienceQuantum sensorNuclear TheoryFOS: Physical sciencesDiamondchemistry.chemical_elementengineering.material01 natural sciencesNitrogenMolecular physics010305 fluids & plasmas3. Good healthCharacterization (materials science)chemistryVacancy defect0103 physical sciencesengineeringddc:530Condensed Matter::Strongly Correlated ElectronsQuantum Physics (quant-ph)Nuclear Experiment010306 general physics

description

Nuclear spin ensembles in diamond are promising candidates for quantum sensing applications, including rotation sensing. Here we perform a characterization of the optically detected nuclear-spin transitions associated with the 14N nuclear spin within diamond nitrogen vacancy (NV) centers. We observe nuclear-spin-dependent fluorescence with the contrast of optically detected 14N nuclear Rabi oscillations comparable to that of the NV electron spin. Using Ramsey spectroscopy, we investigate the temperature and magnetic-field dependence of the nuclear spin transitions in the 77.5-420 K and 350-675 G range, respectively. The nuclear quadrupole coupling constant Q was found to vary with temperature T yielding d|Q|/dT=-35.0(2) Hz/K at T=297 K. The temperature and magnetic field dependencies reported here are important for quantum sensing applications such as rotation sensing and potentially for applications in quantum information processing.

yearjournalcountryeditionlanguage
2019-12-31
10.1103/physrevresearch.2.023094http://arxiv.org/abs/2001.00109