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Advances in cold atom interferometer accelerometry and their impact on the sensitivity of gravity missions

HosseiniArani, Alireza and Schilling, Manuel and Beaufils, Quentin and Knabe, Annike and Tennstedt, Benjamin and Schön, Steffen and Pereira dos Santos, Franck and Müller, Jürgen (2023) Advances in cold atom interferometer accelerometry and their impact on the sensitivity of gravity missions. 28th IUGG General Assembly, 2023-07-11 - 2023-07-20, Berlin. doi: 10.57757/IUGG23-0743.

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Official URL: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5016741

Abstract

Cold Atom Interferometer (CAI) accelerometry is proposed for future generations of satellite gravimetry missions. The technique can achieve high sensitivity and provide long-term stability and precise measurements of the non-gravitational accelerations acting on the satellites. This would reduce the overall instrumental errors and improve the observation of the Earth's gravity field and its change over time and enable a better understanding of several geophysical phenomena, also related to climate change. The current CAI accelerometers have shown great performance, especially in the lower frequencies. They have been able to considerably reduce the bias which is usually seen in the measurements of conventional electrostatic accelerometers. However, noise sources such as satellite rotation can degrade the CAI solution if they are not carefully compensated. In this study, we model the most impactful error sources which perturb the measurements of a CAI accelerometer onboard a GRACE-like satellite. We further investigate the sensitivity of the instrument to the various error sources, including detection noise, aberrations of laser wavefront, contrast loss due to the Coriolis acceleration and laser intensity inhomogeneity. We also consider the potential improvements which can be expected for satellite-based CAI accelerometers in the near and far future (e.g. longer interrogation time, rotation compensation in different scenarios, and increasing the laser waist). Additionally, we study their potential benefit for future satellite missions and the retrieval of the Earth's gravity field.

Item URL in elib:https://elib.dlr.de/196446/
Document Type:Conference or Workshop Item (Speech)
Title:Advances in cold atom interferometer accelerometry and their impact on the sensitivity of gravity missions
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
HosseiniArani, AlirezaInstitut für Erdmessung, Leibniz Universität Hannoverhttps://orcid.org/0000-0002-5080-7094UNSPECIFIED
Schilling, ManuelUNSPECIFIEDhttps://orcid.org/0000-0002-9677-0119UNSPECIFIED
Beaufils, QuentinLNE--SYRTE, Observatoire de Paris, Université PSL, CNRS, Sorbonne Université, 61, avenue de l'Observatoire, F--75014 PARIS, France, Paris, FRANCEUNSPECIFIEDUNSPECIFIED
Knabe, AnnikeInstitut für Erdmessung, Leibniz Universität Hannoverhttps://orcid.org/0000-0002-6603-8648UNSPECIFIED
Tennstedt, BenjaminInstitut für Erdmessung, Leibniz Universität Hannoverhttps://orcid.org/0000-0003-4362-0667UNSPECIFIED
Schön, SteffenInstitut für Erdmessung, Leibniz Universität Hannoverhttps://orcid.org/0000-0002-5042-6742UNSPECIFIED
Pereira dos Santos, FranckLNE--SYRTE, Observatoire de Paris, Université PSL, CNRS, Sorbonne Université, 61, avenue de l'Observatoire, F--75014 PARIS, France, Paris, FRANCEhttps://orcid.org/0000-0003-0659-5028UNSPECIFIED
Müller, JürgenInstitut für Erdmessung, Leibniz Universität Hannover, Germanyhttps://orcid.org/0000-0003-1247-9525UNSPECIFIED
Date:2023
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
DOI:10.57757/IUGG23-0743
Status:Published
Keywords:quantum sensing, Beschleunigungsmesser, Schwerefeld
Event Title:28th IUGG General Assembly
Event Location:Berlin
Event Type:international Conference
Event Start Date:11 July 2023
Event End Date:20 July 2023
Organizer:International Union of Geodesy and Geophysics (IUGG)
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Communication, Navigation, Quantum Technology
DLR - Research area:Raumfahrt
DLR - Program:R KNQ - Communication, Navigation, Quantum Technology
DLR - Research theme (Project):R - Inertial Sensing for Space Applications
Location: Hannover
Institutes and Institutions:Institute for Satellite Geodesy and Inertial Sensing > Satellite Geodesy and Geodetic Modelling
Deposited By: Schilling, Manuel
Deposited On:18 Aug 2023 12:01
Last Modified:24 Apr 2024 20:56

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