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

P. Jamonneau (1) , M. Lesik (1) , J. P. Tetienne (1) , I. Alvizu (2) , L. Mayer (1) , A. Dréau (1) , S. Kosen (1) , J. -F. Roch (1) , S. Pezzagna (3) , J. Meijer , T. Teraji (4) , Y. Kubo (5) , Patrice Bertet (5) , J. R. Maze (2) , Vincent Jacques (6, 1)

1 LAC - Laboratoire Aimé Cotton
2 Departamento de Fisica [UC Santiago]
3 DNSSP - Department of Nuclear Solid State Physics
4 NIMS - National Institute for Materials Science
5 QUANTRONICS - Quantronics Group
6 L2C - Laboratoire Charles Coulomb

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 by engineering 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 environment. This study provides significant insights into the decoherence of the NV electronic spin, which is valuable for quantum metrology and sensing applications.

Domaines: Systèmes mésoscopiques et effet Hall quantique [cond-mat.mes-hall]

P. Jamonneau, M. Lesik, J. P. Tetienne, I. Alvizu, L. Mayer, et al.. Competition between electric field and magnetic field noise in the decoherence of a single spin in diamond. Physical Review B, 2016, 93, pp.024305. ⟨10.1103/PhysRevB.93.024305⟩. ⟨hal-01271919⟩