论文标题
钻石中硅离散中心中电子偶联的光谱特征
Spectroscopic Signatures of Electron-Phonon Coupling in Silicon-Vacancy Centers in Diamond
论文作者
论文摘要
事实证明，钻石中的空置中心是用于量子相干光电应用的可行固态平台。在各种空位中心中，硅离散（SIV）中心最近吸引了很多关注，这是一种反演对称系统，不太容易受到电子 - phonon相互作用的影响。然而，声子介导的过程仍然降低了SIV中心的相干性能，但是由于其弱光谱签名，表征其电子 - 光子偶联的过程非常具有挑战性，并且仍然是一个开放的实验问题。在本文中，我们从理论上研究了SIV中心的模拟线性和非线性光谱中电子音波耦合的特征。我们证明了即使是极弱的电子 - phonon相互作用，例如在SIV中心中，也可以通过非线性光谱技术完全表征，甚至在不同的高结构跃迁之间解决。
Vacancy centers in diamond have proven to be a viable solid-state platform for quantum coherent opto-electronic applications. Among the variety of vacancy centers, silicon-vacancy (SiV) centers have recently attracted much attention as an inversion-symmetric system that is less susceptible to electron-phonon interactions. Nevertheless, phonon-mediated processes still degrade the coherent properties of SiV centers, however characterizing their electron-phonon coupling is extremely challenging due to their weak spectroscopic signatures and remains an open experimental problem. In this paper we theoretically investigate signatures of electron-phonon coupling in simulated linear and nonlinear spectra of SiV centers. We demonstrate how even extremely weak electron-phonon interactions, such as in SiV centers, may be completely characterized via nonlinear spectroscopic techniques and even resolved between different fine-structure transitions.
