优化轨道angular momentum分选器实现电子显微镜下的高效分子识别
Efficient molecule discrimination in electron microcopy through an optimized orbital angular momentum sorter
摘要：
我们考虑在电子显微镜中，通过一种特殊的光束整形技术来鉴别大分子结构的问题。我们的方法是基于最大化从每个电子的状态中提取的哪个分子的信息，为此，在量子态鉴别的框架内导出了最佳的可观测量，这允许人们从探针的量子特性充分考虑。我们模拟实现这样的最佳可观测的广义轨道角动量（OAM）分选机和基准测试其性能对最知名的真实空间的方法。
英文摘要：
We consider the problem of discriminating macromolecular structures in an electron microscope, through a specific beam shaping technique. Our approach is based on maximizing the which-molecule information extracted from the state of each electron. To this aim, the optimal observables are derived within the framework of quantum state discrimination, which allows one to fully account from the quantum character of the probe. We simulate the implementation of such optimal observable on a generalized orbital angular momentum (OAM) sorter and benchmark its performance against the best known real space approach.
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