Research output
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Diffraction-phase-free Bragg atom interferometry
Martínez-Lahuerta, V. J., Kirsten-Siemß, J.-N., Hammerer, K. & Gaaloul, N., Mar 2026, In: AVS Quantum Science. 8, 1, 014404.Research output: Contribution to journal › Article › Research › peer review
Open Access -
Entanglement-enhanced optical ion clock
Dietze, K., Pelzer, L., Krinner, L., Dawel, F., Kramer, J., Spethmann, N. C. H., Kielinski, T., Hammerer, K., Stahl, K., Klose, J., Dörscher, S., Lisdat, C., Benkler, E. & Schmidt, P. O., 17 Feb 2026, In: Physical review letters. 136, 7, 073601.Research output: Contribution to journal › Article › Research › peer review
Open Access -
High-contrast double Bragg interferometry via detuning control
Li, R., Martínez-Lahuerta, V. J., Gaaloul, N. & Hammerer, K., Mar 2026, In: AVS Quantum Science. 8, 1, 014402.Research output: Contribution to journal › Article › Research › peer review
Open Access -
Line search by quantum logic spectroscopy enhanced with squeezing and statistical tests
Vybornyi, I., Chen, S., Spieß, L. J., Schmidt, P. O. & Hammerer, K., 13 Apr 2026, In: Physical Review A.Research output: Contribution to journal › Article › Research › peer review
Open Access -
Atom interferometric sensing over large baselines
Werner, M., Lezeik, A., Schlippert, D., Rasel, E., Gaaloul, N. & Hammerer, K., 19 Mar 2025, Quantum Sensing, Imaging, and Precision Metrology III. Shahriar, S. M. (ed.). SPIE, 133920C. (Proceedings of SPIE - The International Society for Optical Engineering; vol. 13392).Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
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QuantumFrontiers: Cluster of Excellence 2123/2: Pushing the Boundaries of the Measurable
Ospelkaus-Schwarzer, S. (Principal Investigator), Schmidt, P. O. (Principal Investigator), Waag, A. (Principal Investigator), Ding, F. (Principal Investigator), Fuchs, E. (Principal Investigator), Hackmann, E. (Principal Investigator), Hammerer, K. J. (Principal Investigator), Heurs, M. (Principal Investigator), Klempt, C. (Principal Investigator), Kroker, S. (Principal Investigator), Lisdat, C. (Principal Investigator), Mehlstäubler, T. (Principal Investigator), Müller, G. (Principal Investigator), Müller, J. (Principal Investigator), Müller, R. (Principal Investigator), Ospelkaus, C. (Principal Investigator), Prades, J. D. (Principal Investigator), Rasel, E. M. (Principal Investigator), Raußendorf, R. (Principal Investigator), Recher, P. (Principal Investigator), Santos, L. S. (Principal Investigator), Schilling, M. (Principal Investigator), Schumacher, H. W. (Principal Investigator), Surzhykov, A. (Principal Investigator) & Willke, B. (Principal Investigator)
1 Jan 2026 → 31 Dec 2032
Project: Research
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DQ-mat: Collaborative Research Centre 1227/3, sub-project A09: Frequency metrology and precision spectroscopy with designed states and measurements
Hammerer, K. J. (Principal Investigator)
1 Jul 2024 → 30 Jun 2028
Project: Research
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DQ-mat: Collaborative Research Centre 1227/3, sub-project A05: Theory of LMT Atom Interferometers Involving Gravitational Fields
Gaaloul, N. (Principal Investigator) & Hammerer, K. J. (Principal Investigator)
1 Jul 2024 → 30 Jun 2028
Project: Research
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DQ-mat: Collaborative Research Centre 1227/3, sub-project B10: The quantum limits of sensing for ultralight dark matter detection
Hammerer, K. J. (Principal Investigator), Osborne, T. J. (Principal Investigator) & Fuchs, E. (Principal Investigator)
1 Jul 2024 → 30 Jun 2028
Project: Research
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High-sensitive Atom gradiometry for new precision measurements
Hammerer, K. J. (Principal Investigator) & Gaaloul, N. (Principal Investigator)
1 Jan 2024 → 31 Dec 2026
Project: Research
Datasets
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Quadrupole transitions and quantum gates protected by continuous dynamic decoupling data
Lahuerta, V. J. M. (Creator), Pelzer, L. (Creator), Dietze, K. (Creator), Krinner, L. (Creator), Schmidt, P. O. (Creator) & Hammerer, K. (Creator), Zenodo, 20 Feb 2023
DOI: 10.5281/zenodo.7657673, https://zenodo.org/records/7657674
Dataset
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Atom interferometers in weakly curved spacetimes using Bragg diffraction and Bloch oscillations
Werner, M. (Creator) & Hammerer, K. (Creator), Forschungsdaten-Repositorium der LUH, 2023
DOI: 10.25835/jnh3eryx, https://data.uni-hannover.de/dataset/9be9928e-af4e-47e9-9d02-952bea5a560a
Dataset
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Code Supplement: Sideband Thermometry on Ion Crystals
Vybornyi, I. (Creator) & Hammerer, K. (Creator), Forschungsdaten-Repositorium der LUH, 2023
DOI: 10.25835/662v76zo, https://data.uni-hannover.de/dataset/5903fd04-39d7-4f4a-b690-176a33ad1fe0
Dataset
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Code supplement: Line search by quantum logic spectroscopy enhanced with squeezing and statistical tests
Vybornyi, I. (Creator) & Hammerer, K. (Creator), Forschungsdaten-Repositorium der LUH, 20 May 2025
DOI: 10.25835/2z11et40, https://data.uni-hannover.de/dataset/09924230-b686-4fb9-b08e-60a09adcc373
Dataset
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Local Measurement Scheme of Gravitational Curvature using Atom Interferometers
Werner, M. (Creator) & Hammerer, K. (Creator), Forschungsdaten-Repositorium der LUH, 4 Sept 2024
DOI: 10.25835/7d8kyoz3, https://data.uni-hannover.de/dataset/61114e88-4a5f-4f29-a7fc-11b3c60864c8
Dataset