Generalized Stern-Gerlach effect for chiral molecules.
Generalized Stern-Gerlach effect for chiral molecules.
复制标题
DOI：
10.1103/physrevlett.99.130403
复制
发表时间：
2007-05
影响因子：
8.6
通讯作者：
Yong Li;Christoph Bruder;Chang-Pu Sun
中科院分区：
文献类型：
--
作者：
Yong Li;Christoph Bruder;Chang-Pu Sun
斯特恩-格拉赫效应是众所周知的，因为磁场梯度会使具有磁矩的原子束发生自旋相关分裂。在这里，我们表明，诱导规范位可能会导致类似的效果手性分子。在三个非均匀光场的作用下，三能级手征分子的质心受光诱导规范势的支配，分子的内部动力学可以描述为在最低两个能级的约化赝自旋子空间中的绝热演化.我们数值证明，这样的诱导规范位可以导致可观察到的赝自旋相关和手性相关的广义Stern-Gerlach效应的混合左手和右手手性分子在现实条件下。
The Stern-Gerlach effect is well known as spin-dependent splitting of a beam of atoms with magnetic moments by a magnetic-field gradient. Here, we show that an induced gauge potential may lead to a similar effect for chiral molecules. In the presence of three inhomogeneous light fields, the center of mass of a three-level chiral molecule is subject to an optically induced gauge potential, and the internal dynamics of the molecule can be described as an adiabatic evolution in the reduced pseudospin subspace of the two lowest energy levels. We demonstrate numerically that such an induced gauge potential can lead to observable pseudospin-dependent and chirality-dependent generalized Stern-Gerlach effects for mixed left- and right-handed chiral molecules under realistic conditions.