Current Research Projects
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Terrestrial Clock Networks: Fundamental Physics and Applications (CRC 1464, C02)The continuous developments of optical clocks and the long-distance links via fibers, especially within TerraQ, will give access to terrestrial clock networks in practice, which will enable the novel measurement concept of chronometric levelling. From a theoretical perspective, this project will elaborate the rigorous relativistic formalism for clock-based geodesy and assess the effects of approximations in different scenarios. Furthermore, this project will figure out the most promising applications for clock networks in geodesy and fundamental physics.Led by: Prof. Dr.-Ing. Jürgen Müller, Prof. Dr. Claus LämmerzahlTeam:Year: 2021Funding: DFG
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Differential Lunar Laser RangingLed by: Prof. Dr.-Ing. habil. Jürgen MüllerTeam:Year: 2021Funding: Germany’s Excellence Strategy – EXC-2123 QuantumFrontiers (DFG), DLR-SIDuration: 2021 - 2022
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Improved modelling of the Earth-Moon systemLed by: Prof. Dr.-Ing. Jürgen MüllerTeam:Year: 2020Funding: DLR-SIDuration: 2019 - 2022
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LLR contribution to reference frames and Earth orientation parametersLed by: Prof. Dr.-Ing. Jürgen MüllerTeam:Year: 2019Funding: Germany’s Excellence Strategy – EXC-2123 QuantumFrontiers (DFG), DLR-SIDuration: 2019 - 2025
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Relativistic investigations with LLR dataLed by: Prof. Dr.-Ing. habil. Jürgen MüllerTeam:Year: 2019Funding: Germany’s Excellence Strategy – EXC-2123 QuantumFrontiers (DFG)Duration: 2019 - 2025
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Chronometrisches NivellementLed by: Dr.-Ing. Heiner DenkerTeam:Year: 2019Funding: verschiedene Landes- und Drittmittel sowie separate ProjekteDuration: seit 2010
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High-performance clock networks and their application in geodesyThe rapid development of optical clocks and frequency transfer techniques provides the opportunity to compare clocks’ frequencies at the uncertainty level of 10-18. This will enable relativistic geodesy with the aimed accuracy of cm in terms of height. Clock networks are thus highly relevant to various geodetic applications, such as the realization of a height reference system and the determination of regional/global gravity fields. In this project, we aim to investigate the potential of high-performance clock networks and quantify their contributions to specific applications through dedicated simulations.Led by: Prof. Dr.-Ing. Jürgen MüllerTeam:Year: 2019Funding: Germany’s Excellence Strategy – EXC-2123 “QuantumFrontiers” (DFG)
