تقرير
Quantum description of atomic diffraction by material nanostructures
| العنوان: | Quantum description of atomic diffraction by material nanostructures |
|---|---|
| المؤلفون: | Bouton, Quentin, Dutier, G, Fabre, Nathalie, Charron, Eric, Garcion, Charles, Gaaloul, Naceur, Julien, Lecoffre |
| سنة النشر: | 2023 |
| المجموعة: | Physics (Other) Quantum Physics |
| مصطلحات موضوعية: | Physics - Atomic Physics, Quantum Physics |
| الوصف: | 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{\"o}dinger equation, which goes beyond the standard semi-classical 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 semi-classical model. In particular, for atoms at low velocity and close to the material surface, the semi-classical 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. |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2312.12818 |
| رقم الأكسشن: | edsarx.2312.12818 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |