Extending spin coherence times of diamond qubits by high temperature annealing

Abstract

Spins of negatively charged nitrogen-vacancy (NV${}^{-}$) defects in diamond are among the most promising candidates for solid-state qubits. The fabrication of quantum devices containing these spin-carrying defects requires position-controlled introduction of NV${}^{-}$ defects having excellent properties such as spectral stability, long spin coherence time, and stable negative charge state. Nitrogen ion implantation and annealing enable the positioning of NV${}^{-}$ spin qubits with high precision, but to date, the coherence times of qubits produced this way are short, presumably because of the presence of residual radiation damage. In the present work, we demonstrate that a high temperature annealing at 1000${}^{\circ }$C allows 2 millisecond coherence times to be achieved at room temperature. These results were obtained for implantation-produced NV${}^{-}$ defects in a high-purity, 99.99% ${}^{12}$C enriched single crystal chemical vapor deposited diamond. We discuss these remarkably long coherence times in the context of the thermal behavior of residual defect spins. [Published in Physical Review B {\bf{88}}, 075206 (2013)]

References in corpus (13)

• Spins in few-electron quantum dots
• Coherent control of macroscopic quantum states in a single-Cooper-pair box
• Observation of coherent oscillation of a single nuclear spin and realization of a two-qubit conditional quantum gate
• Room temperature coherent control of coupled single spins in solid
• Room temperature entanglement between distant single spins in diamond
• Scalable quantum register based on coupled electron spins in a room temperature solid
• Chip-scale nanofabrication of single spins and spin arrays in diamond
• Generation of single colour centers by focussed nitrogen implantation
• Implantation of labelled single nitrogen vacancy centers in diamond using 15N
• Vertical distribution of nitrogen-vacancy centers in diamond formed by ion implantation and annealing
• Increasing the coherence time of single electron spins in diamond by high temperature annealing
• Long coherence time of spin qubits in ${}^{12}$C enriched polycrystalline CVD diamond
• An upper limit on the lateral vacancy diffusion length in diamond

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