Physics

A quantum coherent spin in hexagonal boron nitride at ambient conditions

H. L. Stern, C. M. Gilardoni, et al.

Discover groundbreaking research conducted by Hannah L. Stern and colleagues on quantum coherent control of a single-photon-emitting defect spin in hBN. This innovative work reveals how decoupling protocols can extend spin coherence, paving the way for advanced room-temperature spin qubits for quantum computing applications.

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Abstract

This paper reports on the quantum coherent control under ambient conditions of a single-photon-emitting defect spin in hexagonal boron nitride (hBN). The carbon-related defect exhibits a spin-triplet electronic ground-state manifold, with spin coherence primarily governed by coupling to a few proximal nuclei. Decoupling protocols prolong this coherence, introducing a new platform for room-temperature spin qubits coupled to quantum registers or sensors.

Publisher

Nature Materials

Published On

Oct 01, 2024

Authors

Hannah L. Stern, Carmem M. Gilardoni, Qiushi Gu, Simone Eizagirre Barker, Oliver F. J. Powell, Xiaoxi Deng, Stephanie A. Fraser, Louis Follet, Chi Li, Andrew J. Ramsay, Hark Hoe Tan, Igor Aharonovich, Mete Atatüre