Discovery of ST1 centers in natural diamond
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2019-08-01 |
| Journal | DOAJ (DOAJ: Directory of Open Access Journals) |
| Authors | Priyadharshini Balasubramanian, Mathias H. Metsch, Prithvi Reddy, Lachlan J. Rogers, Neil B. Manson |
| Institutions | Macquarie University, ARC Centre of Excellence for Engineered Quantum Systems |
| Citations | 21 |
Abstract
Section titled āAbstractāThe ST1 center is a point defect in diamond with bright fluorescence and a mechanism for optical spin initialization and readout. The center has impressive potential for applications in diamond quantum computing as a quantum bus to a register of nuclear spins. This is because it has an exceptionally high readout contrast, and unlike the well-known nitrogen-vacancy center, it does not have a ground state electronic spin that decoheres the nuclear spins. However, its chemical structure is unknown, and there are large gaps in our understanding of its properties. We present the discovery of ST1 centers in natural diamond. Our experiments identify interesting power dependence of the centerās optical dynamics and reveal new electronic structure. We also present a theory of its electron-phonon interactions, which we combine with previous experiments, to shortlist likely candidates for its chemical structure.