Bragg-diffraction-induced imperfections of the signal in retroreflective atom interferometers

authored by: Jens Jenewein, Sabrina Hartmann, Albert Roura, Enno Giese
Abstract: We present a detailed study of the effects of imperfect atom-optical manipulation in Bragg-based light-pulse atom interferometers. Off-resonant higher-order diffraction leads to population loss, spurious interferometer paths, and diffraction phases. In a path-dependent formalism, we study numerically various effects and analyze the interference signal caused by an external phase or gravity. We compare first-order single and double Bragg diffraction in retroreflective setups. In double Bragg diffraction, phase imperfections lead to a beating due to three-path interference. Some effects of diffraction phases can be avoided by adding the population of the outer exit ports of double diffraction.
Organisation(s): Institute of Quantum Optics
External Organisation(s): Ulm University
German Aerospace Center (DLR)
Technische Universität Darmstadt
Type: Article
Journal: Physical Review A
Volume: 105
No. of pages: 15
ISSN: 2469-9926
Publication date: 06.2022
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: Atomic and Molecular Physics, and Optics
Electronic version(s): https://doi.org/10.48550/arXiv.2203.07017 (Access: Open)
https://doi.org/10.1103/PhysRevA.105.063316 (Access: Closed)

BibTeX

@article{41498aed1aa14513876f045f03856ded,
title = "Bragg-diffraction-induced imperfections of the signal in retroreflective atom interferometers",
abstract = "We present a detailed study of the effects of imperfect atom-optical manipulation in Bragg-based light-pulse atom interferometers. Off-resonant higher-order diffraction leads to population loss, spurious interferometer paths, and diffraction phases. In a path-dependent formalism, we study numerically various effects and analyze the interference signal caused by an external phase or gravity. We compare first-order single and double Bragg diffraction in retroreflective setups. In double Bragg diffraction, phase imperfections lead to a beating due to three-path interference. Some effects of diffraction phases can be avoided by adding the population of the outer exit ports of double diffraction.",
author = "Jens Jenewein and Sabrina Hartmann and Albert Roura and Enno Giese",
note = "Funding Information: We are grateful to W.P. Schleich for his stimulating input and continuing support. We thank the QUANTUS and INTENTAS teams for fruitful and interesting discussions. The work of is financially supported by the Ministry of Science, Research and Art Baden-W{\"u}rttemberg (Ministerium f{\"u}r Wissenschaft, Forschung und Kunst Baden-W{\"u}rttemberg). The QUANTUS and INTENTAS projects are supported by the German Space Agency at the German Aerospace Center (Deutsche Raumfahrtagentur im Deutschen Zentrum f{\"u}r Luft- und Raumfahrt, DLR) with funds provided by the Federal Ministry for Economic Affairs and Climate Action (Bundesministerium f{\"u}r Wirtschaft und Klimaschutz, BMWK) due to an enactment of the German Bundestag under Grants No. 50WM1956 (QUANTUS V), No. 50WM2250D-2250E (QUANTUS), as well as No. 50WM2177-2178 (INTENTAS). E.G. thanks the German Research Foundation (Deutsche Forschungsgemeinschaft, DFG) for a Mercator Fellowship within CRC 1227 (DQ-mat). A.R. is supported by the Q-GRAV Project within the Space Research and Technology Program of the German Aerospace Center (Deutsches Zentrum f{\"u}r Luft- und Raumfahrt, DLR). ",
year = "2022",
month = jun,
doi = "10.48550/arXiv.2203.07017",
language = "English",
volume = "105",
journal = "Physical Review A",
issn = "2469-9926",
publisher = "American Physical Society",
number = "6",
}