Journal article

Competition between electric field and magnetic field noise in the decoherence of a single spin in diamond

P Jamonneau, M Lesik, JP Tetienne, I Alvizu, L Mayer, A Dreau, S Kosen, J-F Roch, S Pezzagna, J Meijer, T Teraji, Y Kubo, P Bertet, JR Maze, V Jacques

PHYSICAL REVIEW B | AMER PHYSICAL SOC | Published : 2016

Abstract

We analyze the impact of electric field and magnetic field fluctuations in the decoherence of the electronic spin associated with a single nitrogen-vacancy (NV) defect in diamond. To this end, we tune the amplitude of a magnetic field in order to engineer spin eigenstates protected either against magnetic noise or against electric noise. The competition between these noise sources is analyzed quantitatively by changing their relative strength through modifications of the host diamond material. This study provides significant insights into the decoherence of the NV electronic spin, which is valuable for quantum metrology and sensing applications.

University of Melbourne Researchers

Grants

Awarded by Conicyt-PIA


Awarded by Fondecyt


Awarded by Air Force


Awarded by Grants-in-Aid for Scientific Research


Funding Acknowledgements

We thank R. B. Liu and P. Maletinsky for fruitful discussions and careful reading of the manuscript. This research has been supported by the European Union Seventh Framework Program (FP7/2007-2013) under the project DIADEMS and by the European Research Council (ERC-StG-2014, IMAGINE). J.R.M acknowledges support from Conicyt-PIA Grants No. ACT1108 and No. ACT1112, Fondecyt Grant No. 1141185, and Air Force FA9550-15-1-0113.