A transportable quantum gravimeter employing delta-kick collimated Bose–Einstein condensates

authored by: Nina Heine, Jonas Matthias, Maral Sahelgozin, Waldemar Herr, Sven Abend, Ludger Timmen, Jürgen Müller, Ernst Maria Rasel
Abstract: Abstract: Gravimetry with low uncertainty and long-term stability opens up new fields of research in geodesy, especially in hydrology and volcanology. The main limitations in the accuracy of current generation cold atom gravimeters stem from the expansion rate and the residual centre-of-mass motion of their atomic test masses. Our transportable quantum gravimeter QG-1 aims at overcoming these limitations by performing atom interferometry with delta-kick collimated Bose–Einstein condensates generated by an atom chip. With our approach we anticipate to measure the local gravitational acceleration at geodetic campaigns with an uncertainty less than 1 nm/s² surpassing the state-of-the-art classic and quantum based systems. In this paper, we discuss the design and performance assessment of QG-1. Graphical abstract: [Figure not available: see fulltext.]
Organisation(s): Institute of Quantum Optics
Institute of Geodesy
QuantumFrontiers
CRC 1464: Relativistic and Quantum-Based Geodesy (TerraQ)
Type: Article
Journal: European Physical Journal D
Volume: 74
ISSN: 1434-6060
Publication date: 25.08.2020
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: Atomic and Molecular Physics, and Optics
Electronic version(s): https://doi.org/10.1140/epjd/e2020-10120-x (Access: Open)
https://doi.org/10.15488/10683 (Access: Open)

BibTeX

@article{59f9dd4c1a9a454fbe3f1a4cc21f920f,
title = "A transportable quantum gravimeter employing delta-kick collimated Bose–Einstein condensates",
abstract = "Abstract: Gravimetry with low uncertainty and long-term stability opens up new fields of research in geodesy, especially in hydrology and volcanology. The main limitations in the accuracy of current generation cold atom gravimeters stem from the expansion rate and the residual centre-of-mass motion of their atomic test masses. Our transportable quantum gravimeter QG-1 aims at overcoming these limitations by performing atom interferometry with delta-kick collimated Bose–Einstein condensates generated by an atom chip. With our approach we anticipate to measure the local gravitational acceleration at geodetic campaigns with an uncertainty less than 1 nm/s2 surpassing the state-of-the-art classic and quantum based systems. In this paper, we discuss the design and performance assessment of QG-1. Graphical abstract: [Figure not available: see fulltext.]",
author = "Nina Heine and Jonas Matthias and Maral Sahelgozin and Waldemar Herr and Sven Abend and Ludger Timmen and J{\"u}rgen M{\"u}ller and Rasel, {Ernst Maria}",
year = "2020",
month = aug,
day = "25",
doi = "10.1140/epjd/e2020-10120-x",
language = "English",
volume = "74",
journal = "European Physical Journal D",
issn = "1434-6060",
publisher = "Springer New York",
number = "8",
}