TY - JOUR

T1 - Light-pulse atom interferometry with entangled atom-optical elements

AU - Aßmann, Tobias

AU - Di Pumpo, Fabio

AU - Giese, Enno

N1 - 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 für Luft- und Raumfahrt, DLR) with funds provided by the Federal Ministry of Economic Affairs and Energy (Bundesministerium für 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-Württemberg (Ministerium für Wissenschaft, Forschung und Kunst Baden-Württemberg). E.G. thanks the German Research Foundation (Deutsche Forschungsgemeinschaft, DFG) for a Mercator Fellowship within CRC 1227 (DQ-mat).

PY - 2022/3/1

Y1 - 2022/3/1

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=85125662501&partnerID=8YFLogxK

U2 - 10.48550/arXiv.2202.05763

DO - 10.48550/arXiv.2202.05763

M3 - Article

AN - SCOPUS:85125662501

VL - 4

JO - Physical Review Research

JF - Physical Review Research

SN - 2643-1564

IS - 1

M1 - 013115

ER -