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: Physik und Astronomie (insg.)
Elektronische Version(en): https://doi.org/10.48550/arXiv.2312.12818 (Zugang: Offen)
https://doi.org/10.1103/PhysRevResearch.6.023165 (Zugang: Offen)

BibTeX

@article{14702e5e5b9941e0a3c9c7a258cf64d7,
title = "Quantum description of atomic diffraction by material nanostructures",
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 Schr{\"o}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.",
author = "Charles Garcion and Quentin Bouton and Julien Lecoffre and Nathalie Fabre and {\'E}ric Charron and Gabriel Dutier and Naceur Gaaloul",
note = "Publisher Copyright: {\textcopyright} 2024 authors. Published by the American Physical Society. ",
year = "2024",
month = may,
day = "13",
doi = "10.48550/arXiv.2312.12818",
language = "English",
volume = "6",
journal = "Physical Review Research",
issn = "2643-1564",
publisher = "American Physical Society",
number = "2",
}