Argon Trap Trace Analysis
-
Age dating of environmental systems via 39Ar
-
Applied Quantum Technology
-
Ultrasensitive detection method using quantum optics
The goal of Argon Trap Trace Analysis, ArTTA, is to measure the 39Ar concentration of ice and water samples to gain information about the dynamics of environmental systems. Due to 39Ar having an extremly low abundance, an ulta-high selectivity is required which is achieved by counting single atoms in a magneto-optical trap. Using these quantum optical methods for environmental research is a unique example of applied quantum technology. In the next years the understanding of the generation of metastable atoms and further improvements of the laser cooling efficiency will be part of our research as well as expanding our capabilities to the radiokrypton isotope 85Kr.
The ArTTA project at the Heidelberg University is a cooperation of the group of Markus Oberthaler from the Kirchhoff Institute for Physics and Werner Aeschbach from the Institute for Environmental Physics.
Are you interested in joining?
Your new passion could start with:
-
Development of applied quantum technology
-
Working on optics, electronics, and vacuum systems
-
Data evaluation and programming
-
Dating environmental water and ice samples in collaboration with experts in environmental sciences
We are always looking for motivated bachelors, masters, PhD students, and PostDocs! If you are interested in applying, please send your CV, a transcript, and topics of interest to application@matterwave.de.
Current Projects and Collaborations
The ArTTA project is a joint project with the research group HydroTraP of Werner Aeschbach at the Institute of Environmental Physics in Heidelberg.
Projects and their specific collaborations
An overview with all current and past projects can be found on our project specific Database DABATTA.
-
Novel Dating of Alpine Glaciers by 39Ar-ATTA (ArTTA-ICE)
-
Pascal Bohleber [AWI, Bremerhaven, Deutschland]
-
Andrea Fischer [Österreichische Akademie der Wissenschaften, Istitut für Interdisziplinäre Gebirgsforschung]
-
Martin Stocker-Waldhuber [Österreichische Akademie der Wissenschaften, Istitut für Interdisziplinäre Gebirgsforschung]
-
Survey of the arctic ocean (VACAO)
-
Large-scale investigation of ocean circulation (TITANICA)
-
Pollution studies in Australias groundwater
-
Groundwater in the Rocky Mountains
-
Oman groundwater study: Investigation of low temperature peridotite alteration
Papers
- 2026
- A continuous 6000 a age depth relationship for the remainder of the Weißseespitze summit glacier based on 39Ar and 14C dating
David Wachs, Azzurra Spagnesi, Pascal Bohleber, Andrea Fischer, Martin Stocker-Waldhuber, Alexander Junkermann, Carl Kindermann, Linus Langenbacher, Niclas Mandaric, Joshua Marks, Florian Meienburg, Theo M. Jenk, Markus K. Oberthaler and Werner AeschbachClimate of the Past, Vol. 22, 173-185, 2026, Climate of the Past (22) PDF-File - 2025
- Sampling and Purification Methods for Dating by Atom Trap Trace Analysis in Various Environmental Applications
Yannis Arck, Florian Meienburg, David Wachs, Stefan Beyersdorfer, Arne Kersting, Maximilian Schmidt, Markus Oberthaler and Werner AeschbachACS Earth Space Chem., Vol. 9, 1927-1937, 2025, ACS Earth Space Chem. (9) - Alpine ice core record of large changes in dust, sea-salt,
and biogenic aerosol over Europe during deglaciation
Michel Legrand, Joseph R. McConnell, Susanne Preunkert, David Wachs, Nathan J. Chellman, Kira Rehfeld, Gilles Bergamettia, Sophia M. Wensman, Werner Aeschbach, Markus K. Oberthaler and Ronny FriedrichPNAS NEXUS, Vol. 4, 186, 2025, PNAS NEXUS (4) PDF-File - 2022
- Multi-Tracer Groundwater Dating in Southern Oman Using Bayesian Modeling
Viola Rädle, Arne Kersting, Maximilian Schmidt, Lisa Ringena, Julian Robertz, Werner Aeschbach, Markus Oberthaler, Thomas MüllerWater Resources Research, Volume 58, Issue 6, 2022, 2022, Water Resources Research (58) PDF-File - 2021
- Spurensuche in der Umwelt
Markus Oberthaler und Werner AeschbachPhysik Journal, November 2021, 2021, Physik Journal, November PDF-File - 2019
- Dating glacier ice of the last millennium by quantum technology
Zhongyi Feng, Pascal Bohleber, Sven Ebser, Lisa Ringena, Maximilian Schmidt, Arne Kersting, Philip Hopkins, Helene Hoffmann, Andrea Fischer, Werner Aeschbach, and Markus K. OberthalerPNAS April 30, 2019 116 (18) 8781-8786, arXiv:1811.03955 , 2019, PNAS, Volume: 116 Issue: 18, arXiv:1811.03955 PDF-File - 2018
- Ar-39 dating with small samples provides new key constraints on ocean ventilation
Sven Ebser, Arne Kersting, Tim Stöven, Zhongyi Feng, Lisa Ringena, Maximilian Schmidt, Toste Tanhua, Werner Aeschbach & Markus K. OberthalerNATURE COMMUNICATIONS, Volume 9, 20, arXiv:1807.1114618 , 2018, NATURE COMMUNICATIONS, Volume: 9, arXiv:1807.11146 PDF-File - 2017
- Bichromatic force on metastable argon for atom-trap trace analysis
Z. Feng, S. Ebser, L. Ringena, F. Ritterbusch, and M. K. OberthalerPhys. Rev. A 96 (2017) 013424 , arXiv:1707.01658 , 2017, Phys. Rev. A 96, 013424, Volume: 96, Issue: 1, arXiv:1707.01658 PDF-File - 2014
- Groundwater dating with Atom Trap Trace Analysis of 39Ar
F. Ritterbusch, S. Ebser, J. Welte, T. Reichel, A. Kersting, R. Purtschert, W. Aeschbach-Hertig and M. K. OberthalerGEOPHYSICAL RESEARCH LETTERS, Vol. 41, 6758-6764, 2014, 2014, GEOPHYSICAL RESEARCH LETTERS, Volume: 41, Issue: 19 PDF-File - 2011
- Single spontaneous photon as a coherent beamsplitter for an atomic matter-wave
Jiří Tomkovič, Michael Schreiber, Joachim Welte, Martin Kiffner, Jörg Schmiedmayer & Markus K. OberthalerNature Physics, 2011, doi:10.1038/nphys1961, 2011, Nature Physics, Volume: 7, Issue: 5 PDF-File - 2010
- Towards the realization of atom trap trace analysis for 39Ar
J. Welte, F. Ritterbusch, I. Steinke, M. Henrich, W. Aeschbach-Hertig and M. K. OberthalerNew Journal of Physics, Volume 12, 2010, New Journal of Physics, Volume: 12 - 2009
- Hyperfine spectroscopy of the 1s5−2p9 transition of 39Ar
J. Welte, I. Steinke, M. Henrich, F. Ritterbusch, M. K. Oberthaler, W. Aeschbach-Hertig, W. H. Schwarz and M. TrieloffReview of Scientific Instruments 80 (2009) 11, 2009, Review of Scientific Instruments, Volume 80