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Tel.: +49 6221 516-851
Fax: +49 6221 516-852
Scientific Coordinator

Postal Address
Max Planck Institute for Nuclear Physics
P.O. Box 10 39 80
69029 Heidelberg
Visitor Address
Max Planck Institute for Nuclear Physics
Saupfercheckweg 1
Building: Gentner lab,
room 134
69117 Heidelberg

 

Max Planck-RIKEN-PTB Center for

Time, Constants and Fundamental Symmetries

Publications

2024

Pr10+ as a candidate for a high-accuracy optical clock for tests of fundamental physics
S. G. Porsev, C. Cheung, M. S. Safronova, H. Bekker, N.-H. Rehbehn, J. R. Crespo López-Urrutia, and S. M. Brewer
Phys. Rev. A 110, 042823 (2024) externer Link

Countdown to a nuclear clock
A. Pálffy & J. R. Crespo López-Urrutia
Nature 633, 43-45 (2024) externer Link

Precision spectroscopy on 9Be overcomes limitations from nuclear structure
S. Dickopf, B. Sikora, A. Kaiser, M. Müller, S. Ulmer, V. A. Yerokhin, Z. Harman, C. H. Keitel, A. Mooser & K. Blaum
Nature 632, 757–761 (2024) externer Link

Orders of Magnitude Improved Cyclotron-Mode Cooling for Nondestructive Spin Quantum Transition Spectroscopy with Single Trapped Antiprotons
B. M. Latacz, M. Fleck, J. I. Jäger, G. Umbrazunas, B. P. Arndt, S. R. Erlewein, E. J. Wursten, J. A. Devlin, P. Micke, F. Abbass, D. Schweitzer, M. Wiesinger, C. Will, H. Yildiz, K. Blaum, Y. Matsuda, A. Mooser, C. Ospelkaus, C. Smorra, A. Soter, W. Quint, J. Walz, Y. Yamazaki, and S. Ulmer (BASE Collaboration)
Phys. Rev. Lett. 133, 053201 (2024) externer Link

Image-Current Mediated Sympathetic Laser Cooling of a Single Proton in a Penning Trap Down to 170 mK Axial Temperature
C. Will, M. Wiesinger, P. Micke, H. Yildiz, T. Driscoll, S. Kommu, F. Abbass, B. P. Arndt, B. B. Bauer, S. Erlewein, M. Fleck, J. I. Jäger, B. M. Latacz, A. Mooser, D. Schweitzer, G. Umbrazunas, E. Wursten, K. Blaum, J. A. Devlin, C. Ospelkaus, W. Quint, A. Soter, J. Walz, C. Smorra, and S. Ulmer (BASE Collaboration)
Phys. Rev. Lett. 133, 023002 (2024) externer Link

Long-distance chronometric leveling with a portable optical clock
J. Grotti, I. Nosske, S. B. Koller, S. Herbers, H. Denker, L. Timmen, G. Vishnyakova, G. Grosche, T. Waterholter, A. Kuhl, S. Koke, E. Benkler, M. Giunta, L. Maisenbacher, A. Matveev, S. Dörscher, R. Schwarz, A. Al-Masoudi, T. W. Hänsch, Th. Udem, R. Holzwarth, and C. Lisdat
Phys. Rev. Appl. 21, L061001 (2024) externer Link

Josephson voltage standards as ultra-stable low-noise voltage sources for precision Penning-trap experiments
A. Kaiser, S. Dickopf, M. Door, R. Behr, U. Beutel, S. Eliseev, A. Kaushik, K. Kromer, M. Müller, L. Palafox, S. Ulmer, A. Mooser, K. Blaum
Appl. Phys. Lett. 124, 224002 (2024) externer Link

Laser Excitation of the Th-229 Nucleus
J. Tiedau, M. V. Okhapkin, K. Zhang, J. Thielking, G. Zitzer, E. Peik, F. Schaden, T. Pronebner, I. Morawetz, L. Toscani De Col, F. Schneider, A. Leitner, M. Pressler, G. A. Kazakov, K. Beeks, T. Sikorsky, and T. Schumm
Phys. Rev. Lett. 132, 182501 (2024) externer Link

Penning-trap measurement of the Q value of electron capture in 163Ho for the determination of the electron neutrino mass
C. Schweiger, M. Braß, V. Debierre, M. Door, H. Dorrer, C. E. Düllmann, C. Enss, P. Filianin, L. Gastaldo, Z. Harman, M. W. Haverkort, J. Herkenhoff, P. Indelicato, C. H. Keitel, K. Kromer, D. Lange, Y. N. Novikov, D. Renisch, A. Rischka, R. X. Schüssler, S. Eliseev & K. Blaum
Nat. Phys. 20, 921–927 (2024) externer Link

Sympathetic cooling of trapped Th3+ alpha-recoil ions for laser spectroscopy
G. Zitzer, J. Tiedau, M. V. Okhapkin, K. Zhang, C. Mokry, J. Runke, Ch. E. Düllmann, and E. Peik
Phys. Rev. A 109, 033116 (2024) externer Link

Closed-cycle noble gas recycling system for high-repetition rate high-harmonic generation
J.-H. Oelmann, L. Guth, T. Heldt, N. Griesbach, R. Hector, N. Lackmann, J. Nauta, T. Pfeifer, J. R. Crespo López-Urrutia
Rev. Sci. Instrum. 95, 035115 (2024) externer Link

Experimental and theoretical Ritz–Rydberg analysis of the electronic structure of highly charged ions of lead and bismuth by optical spectroscopy
M. K. Rosner, N.-H. Rehbehn and J. R. Crespo López-Urrutia
J. Phys. B: At. Mol. Opt. Phys. 57, 055001 (2024) externer Link

Atomic mass determination of uranium-238
K. Kromer, C. Lyu, J. Bieron, M. Door, L. Enzmann, P. Filianin, G. Gaigalas, Z. Harman, J. Herkenhoff, W. Huang, C. H. Keitel, S. Eliseev, and K. Blaum
Phys. Rev. C 109, L021301 (2024) externer Link