title: Probing the dynamics of a nuclear spin bath in diamond through time-resolved central spin magnetometry.
abstract: 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.
authors.affiliation: Laboratoire Aimé Cotton, CNRS, Université Paris-Sud and Ecole Normale Supérieure de Cachan, 91405 Orsay, France.
authors.forename: A
authors.initials: A
authors.lastname: Dréau
authors.affiliation: Laboratoire Aimé Cotton, CNRS, Université Paris-Sud and Ecole Normale Supérieure de Cachan, 91405 Orsay, France.
authors.forename: P
authors.initials: P
authors.lastname: Jamonneau
authors.affiliation: Universität des Saarlandes, Fachrichtung 7.2 (Experimentalphysik), Campus E2.6, 66123 Saarbrücken, Germany.
authors.forename: O
authors.initials: O
authors.lastname: Gazzano
authors.affiliation: Laboratoire Aimé Cotton, CNRS, Université Paris-Sud and Ecole Normale Supérieure de Cachan, 91405 Orsay, France.
authors.forename: S
authors.initials: S
authors.lastname: Kosen
authors.affiliation: Laboratoire Aimé Cotton, CNRS, Université Paris-Sud and Ecole Normale Supérieure de Cachan, 91405 Orsay, France.
authors.forename: J-F
authors.initials: JF
authors.lastname: Roch
authors.affiliation: Facultad de Física, Pontificia Universidad Católica de Chile, Santiago 7820436, Chile.
authors.forename: J R
authors.initials: JR
authors.lastname: Maze
authors.affiliation: Laboratoire Aimé Cotton, CNRS, Université Paris-Sud and Ecole Normale Supérieure de Cachan, 91405 Orsay, France.
authors.forename: V
authors.initials: V
authors.lastname: Jacques