Light-pulse atom interferometry with entangled atom-optical elements

authored by: Tobias Aßmann, Fabio Di Pumpo, Enno Giese
Abstract: The analogs of optical elements in light-pulse atom interferometers are generated from the interaction of matter waves with light fields. As such, these fields possess quantum properties, which fundamentally lead to a reduced visibility in the observed interference. This loss is a consequence of the encoded information about the atom's path. However, the quantum nature of the atom-optical elements also gives an additional degree of freedom to reduce such effects: We demonstrate that entanglement between all light fields can be used to erase information about the atom's path and by that to partially recover the visibility. Thus, our work highlights the role of complementarity on atom-interferometric experiments.
Organisation(s): Institute of Quantum Optics
External Organisation(s): Ulm University
Technische Universität Darmstadt
Type: Article
Journal: Physical Review Research
Volume: 4
No. of pages: 10
ISSN: 2643-1564
Publication date: 01.03.2022
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: General Physics and Astronomy
Electronic version(s): https://doi.org/10.48550/arXiv.2202.05763 (Access: Open)
https://doi.org/10.1103/PhysRevResearch.4.013115 (Access: Open)

BibTeX

@article{204b04739f134599b8ca73b5818fd7e7,
title = "Light-pulse atom interferometry with entangled atom-optical elements",
abstract = "The analogs of optical elements in light-pulse atom interferometers are generated from the interaction of matter waves with light fields. As such, these fields possess quantum properties, which fundamentally lead to a reduced visibility in the observed interference. This loss is a consequence of the encoded information about the atom's path. However, the quantum nature of the atom-optical elements also gives an additional degree of freedom to reduce such effects: We demonstrate that entanglement between all light fields can be used to erase information about the atom's path and by that to partially recover the visibility. Thus, our work highlights the role of complementarity on atom-interferometric experiments.",
author = "Tobias A{\ss}mann and {Di Pumpo}, Fabio and Enno Giese",
note = "Funding Information: We are grateful to W. P. Schleich for his stimulating input and continuing support. Moreover, we thank A. Friedrich, C. Pfleghar, K. Soukup, and C. Ufrecht, as well as the QUANTUS and INTENTAS teams, for fruitful and interesting discussions. The QUANTUS and INTENTAS projects are supported by the German Aerospace Center (Deutsches Zentrum f{\"u}r Luft- und Raumfahrt, DLR) with funds provided by the Federal Ministry of Economic Affairs and Energy (Bundesministerium f{\"u}r Wirtschaft und Energie, BMWi) due to an enactment of the German Bundestag under Grants No. 50WM1956 (QUANTUS V), No. 50WM2177, and No. 50WM2178 (INTENTAS). The projects “Building composite particles from quantum field theory on dilaton gravity” (BOnD) and “Metrology with interfering Unruh-DeWitt detectors” (MIUnD) are funded by the Carl Zeiss Foundation (Carl-Zeiss-Stiftung). The work of IQ 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). E.G. thanks the German Research Foundation (Deutsche Forschungsgemeinschaft, DFG) for a Mercator Fellowship within CRC 1227 (DQ-mat). ",
year = "2022",
month = mar,
day = "1",
doi = "10.48550/arXiv.2202.05763",
language = "English",
volume = "4",
journal = "Physical Review Research",
issn = "2643-1564",
publisher = "American Physical Society",
number = "1",
}