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arXiv 2205.00536quant-ph
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中子干涉测量中的相位涡旋晶格

Phase Vortex Lattices in Neutron Interferometry

Niels Geerits, Hartmut Lemmel, Anna-Sophie Berger, Stephan Sponar

AI总结:

本文提出利用插入嵌套环干涉仪的铝棱镜组合生成具有显著外在轨道角动量的中子相位涡旋晶格,该方法利用强核相互作用生成更紧凑晶格,并可应用于本征中子轨道角动量态及各向异性超小角中子散射。

摘要:

将插入嵌套环干涉仪的铝棱镜组合用于生成中子相位涡旋晶格,该晶格具有显著的外在轨道角动量 L_z=0.35,尺度为 220 微米,横向于传播方向。我们的方法是近期发展的磁性方法的推广,从而能够利用强核相互作用。这些棱镜更强的势允许生成更紧凑的晶格。结合近期在中子复合光学和分裂晶体干涉测量方面的进展,我们的方法可应用于生成本征中子轨道角动量态。最后,我们断言,就其现状而言,我们的装置可直接应用于各向异性超小角中子散射。

英文摘要:

A combination of aluminium prisms inserted into a nested loop interferometer is used to generate a neutron phase vortex lattice with significant extrinsic orbital angular momentum, L_z=0.35, on a length scale of 220 microns, transverse to the propagation direction. Our method is a generalization of recently developed magnetic methods, such that we can exploit the strong nuclear interaction. The stronger potential of these prisms allows for the generation of a tighter lattice. Combined with recent advances in neutron compound optics and split crystal interferometry our method may be applied to the generation of intrinsic neutron orbital angular momentum states. Finally, we assert that, in its current state, our setup is directly applicable to anisotropic ultra small angle neutron scattering.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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