论文标题
光谱学家分离浆果几何磁力对分子动力学的影响的方案
A Protocol for Spectroscopists to Isolate The Effect of Berry Geometric Magnetic Forces on Molecular Dynamics
论文作者
论文摘要
我们提出了一种新颖的手段，可以使用两个合理强的连续波（CW）激光场隔离和量化浆果力对分子动力学的影响。对于具有三个频率匹配的明亮过渡的分子或材料（$ | {0} \ rangle \ rightarrow | {1} \ rangle $，$ | {1} \ rangle \ rangle \ rangearrow | {2} \ rangle $，$ | $ω$，$2Ω$）分别可以通过改变两个激光场（$ δϕ $）之间的相位并监视动力学来隔离浆果曲率的效果。此外，我们发现所产生的化学动力学可以严重取决于$ δϕ $的符号；换句话说，浆果曲率的影响可能是巨大的。因此，该手稿代表了使用光 - 物质相互作用来影响化学动力学迈出的不寻常的一步，这表明通常在绝热量子光学和凝结物质中调用的拓扑概念可以直接应用于非绝热化学激发态动力学。
We propose a novel means to isolate and quantify the effects of Berry force on molecular dynamics using two reasonably strong continuous wave (CW) laser fields with frequencies $ω$ and $2ω$. For molecules or materials with three frequency-matching bright transitions ($|{0}\rangle\rightarrow|{1}\rangle$, $|{1}\rangle\rightarrow|{2}\rangle$, $|{0}\rangle\rightarrow|{2}\rangle$) at frequencies ($ω$, $ω$, $2ω$) respectively, the effects of Berry curvature can be isolated by varying the phase between the two laser fields ($Δϕ$) and monitoring the dynamics. Moreover, we find that the resulting chemical dynamics can depend critically on the sign of $Δϕ$; in other words, the effects of Berry curvature can be enormous. Thus, this manuscript represents an unusual step forward towards using light-matter interactions to affect chemical dynamics, suggesting that topological concepts usually invoked in adiabatic quantum optics and condensed matter can be directly applied to non-adiabatic chemical excited state dynamics.
