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Keywords = few-body interference

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11 pages, 1012 KB  
Article
Probing Atomic ‘Quantum Grating’ by Collisions with Charged Particles
by Bennaceur Najjari, Shaofeng Zhang, Xinwen Ma and Alexander B. Voitkiv
Atoms 2022, 10(4), 125; https://doi.org/10.3390/atoms10040125 - 1 Nov 2022
Viewed by 2110
Abstract
The wave function of an atom, which passed through a diffraction grating, is characterized by a regular space structure. Correspondingly, the interaction of another particle with this atom can be viewed as scattering on an ‘atomic quantum grating’ made of just a single [...] Read more.
The wave function of an atom, which passed through a diffraction grating, is characterized by a regular space structure. Correspondingly, the interaction of another particle with this atom can be viewed as scattering on an ‘atomic quantum grating’ made of just a single atom. Probing this ‘grating’ by collisions with a charged projectile reveals few-body interference phenomena caused by the coherent contributions of its ‘slits’ to the transition amplitude (the superposition principle) and quantum entanglement of the particles involved. In particular, the spectra of electrons emitted from the atom in collisions with swift ions exhibit a pronounced interference pattern whose shape can be extremely sensitive to the collision velocity. Full article
(This article belongs to the Section Atomic, Molecular and Nuclear Spectroscopy and Collisions)
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