Nanoscale covariance magnetometry with diamond quantum sensors

Jared Rovny, Zhiyang Yuan, Mattias Fitzpatrick, Ahmed I. Abdalla, Laura Futamura, Carter Fox, Matthew Carl Cambria, Shimon Kolkowitz, Nathalie P. de Leon

Research output: Contribution to journalArticlepeer-review

12 Scopus citations


Nitrogen vacancy (NV) centers in diamond are atom-scale defects that can be used to sense magnetic fields with high sensitivity and spatial resolution. Typically, the magnetic field is measured by averaging sequential measurements of single NV centers, or by spatial averaging over ensembles of many NV centers, which provides mean values that contain no nonlocal information about the relationship between two points separated in space or time. Here, we propose and implement a sensing modality whereby two or more NV centers are measured simultaneously, and we extract temporal and spatial correlations in their signals that would otherwise be inaccessible. We demonstrate measurements of correlated applied noise using spin-to-charge readout of two NV centers and implement a spectral reconstruction protocol for disentangling local and nonlocal noise sources.

Original languageEnglish (US)
Pages (from-to)1301-1305
Number of pages5
Issue number6626
StatePublished - Dec 23 2022
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • General


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