Physical review letters
Wideband Covariance Magnetometry below the Diffraction Limit.
Xuan Hoang Le, Pavel E Dolgirev, Piotr Put, Eric L Peterson, Arjun Pillai, Alexander A Zibrov, Eugene Demler, Hongkun Park, Mikhail D Lukin
Published: 202510.1103/7xlj-52xt
Abstract
We experimentally demonstrate a method for measuring correlations of wideband magnetic signals with spatial resolution below the optical diffraction limit. Our technique employs two nitrogen-vacancy (NV) centers in diamond as nanoscale magnetometers,…
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