Double-Quantum Spin-Relaxation Limits to Coherence of Near-Surface Nitrogen-Vacancy Centers
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2017-05-09 |
| Journal | Physical Review Letters |
| Authors | Bryan Myers, Amila Ariyaratne, Ania C. Bleszynski Jayich |
| Institutions | University of California, Santa Barbara |
| Citations | 120 |
Abstract
Section titled āAbstractāWe probe the relaxation dynamics of the full three-level spin system of near-surface nitrogen-vacancy (NV) centers in diamond to define a T_{1} relaxation time that sets the T_{2}ā¤2T_{1} coherence limit of the NVās subset qubit superpositions. We find that double-quantum spin relaxation via electric field noise dominates T_{1} of near-surface NVs at low applied magnetic fields. Furthermore, we differentiate 1/f^{Ī±} spectra of electric and magnetic field noise using a novel noise-spectroscopy technique, with broad applications in probing surface-induced decoherence at material interfaces.