Max Planck-RIKEN-PTB Center for

Recent Publications

2025

Testing interelectronic interaction in lithium-like tin
J. Morgner, V. A. Yerokhin, C. M. König, F. Heiss, B. Tu, T. Sailer, B. Sikora, Z. Harman, J. R. Crespo López-Urrutia, C. H. Keitel, S. Sturm, and K. Blaum
Science 388 (6750), 945-949 (2025) 

Laser spectroscopy on the hyperfine structure and isotope shift of sympathetically cooled ²²⁹Th³⁺ ions
G. Zitzer, J. Tiedau, Ch. E. Düllmann, M. V. Okhapkin, and E. Peik
Phys. Rev. A 111, L050802 (2025) 

Laser-induced quenching of the Th-229 nuclear clock isomer in calcium fluoride
F. Schaden, T. Riebner, I. Morawetz, L. Toscani De Col, G. A. Kazakov, K. Beeks, T. Sikorsky, and T. Schumm
K. Zhang, V. Lal, G. Zitzer, J. Tiedau, M. V. Okhapkin, and E. Peik
Phys. Rev. Research 7, L022036 (2025) 

Searching for Dark Matter with the ²²⁹Th Nuclear Lineshape from Laser Spectroscopy
E. Fuchs, F. Kirk, E. Madge, C. Paranjape, E. Peik, G. Perez, W. Ratzinger, and J. Tiedau
Phys. Rev. X 15, 021055 (2025) 

Proton transport from the antimatter factory of CERN
M. Leonhardt, D. Schweitzer, F. Abbass, K. K. Anjum, B. Arndt, S. Erlewein, S. Endoh, P. Geissler, T. Imamura, J. I. Jäger, B. M. Latacz, P. Micke, F. Voelksen, H. Yildiz, K. Blaum, J. A. Devlin, Y. Matsuda, C. Ospelkaus, W. Quint, A. Soter, J. Walz, Y. Yamazaki, S. Ulmer & C. Smorra
Nature 641, 871–875 (2025) 

Probing New Bosons and Nuclear Structure with Ytterbium Isotope Shifts
M. Door, C.-H. Yeh, M. Heinz, F. Kirk, C. Lyu, T. Miyagi, J. C. Berengut, J. Bieroń, K. Blaum, L. S. Dreissen, S. Eliseev, P. Filianin, M. Filzinger, E. Fuchs, H. A. Fürst, G. Gaigalas, Z. Harman, J. Herkenhoff, N. Huntemann, C. H. Keitel, K. Kromer, D. Lange, A. Rischka, C. Schweiger, A. Schwenk, N. Shimizu, and T. E. Mehlstäubler
Phys. Rev. Lett. 134, 063002 (2025) 

¹¹⁵In⁺ - ¹⁷²Yb⁺ Coulomb Crystal Clock with 2.5 × 10⁻¹⁸ Systematic Uncertainty
H. N. Hausser, J. Keller, T. Nordmann, N. M. Bhatt, J. Kiethe, H. Liu, I. M. Richter, M. von Boehn, J. Rahm, S. Weyers, E. Benkler, B. Lipphardt, S. Dörscher, K. Stahl, J. Klose, C. Lisdat, M. Filzinger, N. Huntemann, E. Peik, and T. E. Mehlstäubler
Phys. Rev. Lett. 134, 023201 (2025)