论文标题
通过有机官能化对光学循环中心的弗兰克 - 周期调整
Franck-Condon tuning of optical cycling centers by organic functionalization
论文作者
论文摘要
激光诱导的电子激发自发发射光子并直接腐烂到初始基态（“光学循环跃迁”）用于量子信息和精确测量，以进行状态初始化和读数。为了将这种主要原子技术扩展到有机化合物，我们从理论上研究了碱土苯氧化物及其功能化衍生物的光学循环。我们发现，这些物种在波函数不匹配引起的光周期泄漏量很低，可以通过使用化学取代来进一步抑制通过共振和诱导效应来提高芳族分子配体的电子强度。这提供了一种直接的方法，可以使用化学官能团来构建用于激光冷却，状态制备和量子测量的光学循环部分。
Laser induced electronic excitations that spontaneously emit photons and decay directly to the initial ground state ("optical cycling transitions") are used in quantum information and precision measurement for state initialization and readout. To extend this primarily atomic technique to organic compounds, we theoretically investigate optical cycling of alkaline earth phenoxides and their functionalized derivatives. We find that optical cycle leakage due to wavefunction mismatch is low in these species, and can be further suppressed by using chemical substitution to boost the electron withdrawing strength of the aromatic molecular ligand through resonance and induction effects. This provides a straightforward way to use chemical functional groups to construct optical cycling moieties for laser cooling, state preparation, and quantum measurement.
