论文标题
超电分子碰撞的完全量子相干控制
Complete quantum coherent control of ultracold molecular collisions
论文作者
论文摘要
我们表明，基于量子干扰的相干控制是调整超速分子碰撞动力学的高效工具，并且没有依赖外部电磁场的常用方法的局限性。通过变化，简并分子状态的初始相干叠加的相对种群和}阶段，我们证明了对初始和最终碰撞通道的Ultrocold $ s $波状态中整体散射截面的完全相干控制。所提出的控制方法将应用于Ultracold O $ _2 $〜+〜o $ _2 $碰撞，显示出对$ S $ -Wave Spin-Exchange横截面的广泛控制，并且在许多数量级上的产品分支比率和产品分支比率。
We show that quantum interference-based coherent control is a highly efficient tool for tuning ultracold molecular collision dynamics, and is free from the limitations of commonly used methods that rely on external electromagnetic fields. By varying {the relative populations and} phases of an initial coherent superpositions of degenerate molecular states, we demonstrate complete coherent control over integral scattering cross sections in the ultracold $s$-wave regime of both the initial and final collision channels. The proposed control methodology is applied to ultracold O$_2$~+~O$_2$ collisions, showing extensive control over $s$-wave spin-exchange cross sections and product branching ratios over many orders of magnitude.
