论文标题
尽管退化，但完全可控性：手性分子中对映异构体特异性状态转移的量子控制
Complete Controllability Despite Degeneracy: Quantum Control of Enantiomer-Specific State Transfer in Chiral Molecules
论文作者
论文摘要
我们证明了属于取向量子数的非对称顶部分子的旋转状态的完全可控性。基于该见解，我们构建了一个脉冲序列，该脉冲序列能够在能力性地分离元素，该脉冲将最初分布在退化的M态上，作为方向性净化的前体。 引入对映体选择性可控性的概念，我们确定了手性分子中完全特异性人群转移的条件，并构建了脉冲序列，从而意识到这种转移的人群最初分布在退化的M态上。这种退化目前限制除旋转基态以外的任何初始状态的对映异构体选择性。因此，我们的工作表明了如何克服仅与电场分离的重要障碍，仅与电场中的电场相比，从左手分子中左手中的分子中的分离。
We prove complete controllability for rotational states of an asymmetric top molecule belonging to degenerate values of the orientational quantum number M. Based on this insight, we construct a pulse sequence that energetically separates population initially distributed over degenerate M-states, as a precursor for orientational purification. Introducing the concept of enantio-selective controllability, we determine the conditions for complete enantiomer-specific population transfer in chiral molecules and construct pulse sequences realizing this transfer for population initially distributed over degenerate M-states. This degeneracy presently limits enantiomer-selectivity for any initial state except the rotational ground state. Our work thus shows how to overcome an important obstacle towards separating, with electric fields only, left-handed from right-handed molecules in a racemic mixture.
