利用STIRAP组态中的抗偏转暗态实现冷分子束中的完全量子态选择性
Complete quantum state selectivity in cold molecular beams using deflection-resistant dark states in a STIRAP configuration
摘要:
化学动力学的主要目标之一是产生由单一(振动、旋转和磁性)量子态组成的分子束。本文证明了通过对电磁诱导偏转(EID)产生电阻来实现{ \it complete}量子态选择性是可能的,并且可以任意“拨入”被选择的量子态。我们说明的方法,详细说明了如何纯化热束的LiRb和IF分子产生的分子束组成的各种预先选择的单一的内部量子态和/或叠加这样的状态。我们希望这种方法将在随后的所有化学反应及其控制的基础探索中得到应用,并将冷分子用作研究量子动力学中一些最深刻问题的工具。
英文摘要:
One of the main goals of chemical dynamics is the creation of molecular beams composed of a single (vibrational, rotational, and magnetic) quantum state of choice. In this paper we show that it is possible to achieve {\it complete} quantum state selectivity by producing resistance to electromagnetically induced deflection (EID) and that the state to be selected can be "dialed in" at will. We illustrate the method by showing in detail how to purify thermal beams of the LiRb and IF molecules to yield molecular beams composed of a variety of pre-chosen single internal quantum states and/or superpositions of such states. We expect that this method will be implemented in all subsequent explorations of the fundamentals of chemical reactions and their control, and the use of cold molecules as a vehicle for studying some of the most profound issues of quantum dynamics.
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