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Quantum description of atomic diffraction by material nanostructures
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DOI：10.1103/PhysRevResearch.6.023165.png)
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We present a theoretical model of matter-wave diffraction through a material nanostructure. This model is based on the numerical solution of the time -dependent Schr & ouml;dinger equation, which goes beyond the standard semiclassical approach. In particular, we consider the dispersion force interaction between the atoms and the material, which is responsible for high energy variations. The effect of such forces on the quantum model is investigated, along with a comparison with the semiclassical model. In particular, for atoms at low velocity and close to the material surface, the semiclassical approach fails, while the quantum model accurately describes the expected diffraction pattern. This description is thus relevant for slow and cold atom experiments where increased precision is required, e.g., for metrological applications.
Keyword:
ELECTRODYNAMICS
期刊
IF:
4.2
论文数:
7.6K
被引数:
2.7W
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