Quantum description of atomic diffraction by material nanostructures

verfasst von
Charles Garcion, Quentin Bouton, Julien Lecoffre, Nathalie Fabre, Éric Charron, Gabriel Dutier, Naceur Gaaloul
Abstract

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 Schrödinger 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.

Organisationseinheit(en)
Institut für Quantenoptik
QuantumFrontiers
SFB 1227: Designte Quantenzustände der Materie (DQ-mat)
Externe Organisation(en)
Université Sorbonne Paris Nord
Universität Paris-Saclay
Typ
Artikel
Journal
Physical Review Research
Band
6
Anzahl der Seiten
10
ISSN
2643-1564
Publikationsdatum
13.05.2024
Publikationsstatus
Veröffentlicht
Peer-reviewed
Ja
ASJC Scopus Sachgebiete
Allgemeine Physik und Astronomie
Elektronische Version(en)
https://doi.org/10.48550/arXiv.2312.12818 (Zugang: Offen)
https://doi.org/10.1103/PhysRevResearch.6.023165 (Zugang: Offen)