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arXiv · 2509.00443

The Group-IV-Vacancy Color Center in Diamond

Fenglei Gu
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Abstract

Group-IV vacancy (G4V, or XV, where X = Si, Ge, Sn, Pb) color centers constitute a novel and promising class of defects in diamonds. This chapter reviews and refines the theoretical models for the XV systems, encompassing the intrinsic interactions, including spin-orbit coupling and electron-phonon interactions, and the external interactions involving strain, electric, light, and magnetic fields. Based on the refined model, we predict their properties, explain the experimental data, and suggest follow-up experiments. This article established a solid foundation for controlling the XV system, thus paving the way for quantum information processing.

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Fenglei Gu. 2025-08-30. The Group-IV-Vacancy Color Center in Diamond. https://arxiv.org/abs/2509.00443

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