Probing the dynamics of a nuclear spin bath in diamond through time-resolved central spin magnetometry.
Laboratoire Aimé Cotton, CNRS, Université Paris-Sud and Ecole Normale Supérieure de Cachan, 91405 Orsay, France.
Universität des Saarlandes, Fachrichtung 7.2 (Experimentalphysik), Campus E2.6, 66123 Saarbrücken, Germany.
Facultad de Física, Pontificia Universidad Católica de Chile, Santiago 7820436, Chile.
- Published Article
Physical Review Letters
American Physical Society
- Publication Date
Sep 26, 2014
Using fast electron spin resonance spectroscopy of a single nitrogen-vacancy defect in diamond, we demonstrate real-time readout of the Overhauser field produced by its nuclear spin environment under ambient conditions. These measurements enable narrowing the Overhauser field distribution by postselection, corresponding to a conditional preparation of the nuclear spin bath. Correlations of the Overhauser field fluctuations are quantitatively inferred by analyzing the Allan deviation over consecutive measurements. This method allows us to extract the dynamics of weakly coupled nuclear spins of the reservoir.
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The corresponding record at NLM can be accessed at https://www.ncbi.nlm.nih.gov/pubmed/25302916