Rostock 2019 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 57: Poster: Quantum Optics and Photonics III
Q 57.11: Poster
Donnerstag, 14. März 2019, 16:15–18:15, S Fobau Physik
Universal atom interferometry simulator for precision sensing — •Florian Fitzek1, 2, Ernt M. Rasel1, Klemens Hammerer2, and Naceur Gaaloul1 — 1Institute for Quantum Optics, Hanover — 2Institute for Theoretical Physics, Hanover
Quantum sensors based on light-pulse atom interferometers allow for high-precision measurements of inertial and electromagnetic forces, accurate determination of fundamental constants as the fine structure constant α or to test foundational laws of modern physics as the equivalence principle. The full potential, i.e. sensitivity of these schemes unfolds when large interrogation times or macroscopic arm separation could be implemented. Both directions, however, imply a substantial deviation from an ideal interaction of light with atomic systems. Indeed, real-life complications as finite pulse areas and fidelities, momentum width broadening of the cold clouds, atomic interactions or light fields distortions limit the measurements but more dramatically hinder a reasonable systematics study. This is mainly due to the limited number of analytical cases and to the realistic numerical calculations being intractable.
In this study, we present an efficient numerical solver of the timedependent dynamics of atom-light interactions in position space. It is designed to allow for a flexible simulation of a wide range of nonideal effects. This approach is also aimed to be cross-regime, valid for different types of beam splitters (Bragg, Raman and Bloch) and free from approximations incompatible with a metrological use.