Publications

Noncollinear enhancement resonator with intrinsic pulse synchronization and alignment employing wedge mirrors

S. H. Wissenberg, J. Weitenberg, J. Moreno, H. Hartung, M. Möslein, Th. Burkhardt, T. Teschler, F. Schmid, Th. Udem, H.-D. Hoffmann, P. G. Thirolf, Th. W. Hänsch, A. Ozawa, and C. L. Haefner

Published in APS Physical Review Journals, 21 April 2025

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

Published in Physical Review Letters, 29 April 2024

Sympathetic cooling of trapped ${Th}^{3 +}$ 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

Published in Physical Review A, 2024

Observation of the radiative decay of the ²²⁹Th nuclear clock isomer

S. Kraemer, J. Moens, M. Athanasakis-Kaklamanakis, S. Bara, K. Beeks, P. Chhetri,

Katerina Chrysalidis, A. Claessens, T.E. Cocolios, J.M. Correia, H. De Witte,

R. Ferrer, S. Geldhof, R. Heinke, N. Hosseini, M. Huyse, U. Köster, Y. Kudryavtsev,

M. Laatiaoui, R. Lica, G. Magchiels, V. Manea, C. Merckling, L.M.C. Pereira,

S. Raeder, T. Schumm, S. Sels, P.G. Thirolf, S.M. Tunhuma, P. Van Den Bergh,

P. Van Duppen, A. Vantomme, M. Verlinde, R. Villarreal, and U. Wahl

Published in Nature 617, 706-710 (2023)

Photon lights a path towards a nuclear clock

Adriana Pálffy

Published in Nature 617, 706-710 (2023)

Excitation and probing of low-energy nuclear states at high-energy storage rings

Junlan Jin, Hendrik Bekker, Tobias Kirschbaum, Yuri A. Litvinov, Adriana Pálffy, Jonas Sommerfeldt, Andrey Surzhykov, Peter G. Thirolf, and Dmitry Budker

Phys. Rev. Research 5, 023134 (2023)

Extending Our Knowledge about the ²²⁹Th Nuclear Isomer

B.Seiferle, D. Moritz, K. Scharl, S.Ding, F.Zacherl, L. Löbell, P. G. Thirolf

published in MDPI, February 2022

Nuclear clocks for testing fundamental physics

E. Peik, T. Schumm, M. S. Safronova, A. Pálffy, J. Weitenberg and P. G. Thirolf

published in Quantum Science and Technology, April 2021

Role of triple excitations in calculating different properties of Ba+

S. G. Porsev, M. S. Safronova (2021)

published in arXiv, March 2021

The thorium-229 low-energy isomer and the nuclear clock

Kjeld Beeks, Tomas Sikorsky, Thorsten Schumm, Johannes Thielking, Maxim V. Okhapkin & Ekkehard Peik

published in Nature Reviews Physics, February 2021

Absolute X-ray energy measurement using a highly accurate angle encoder

T. Masuda, T. Watanabe, K. Beeks, H. Fujimoto, T. Hiraki, H. Kaino, S. Kitao, Y. Miyamoto, K. Okai, N. Sasao, M. Seto, T. Schumm, Y. Shigekawa, K. Tamasaku, S. Uetake, A. Yamaguchi, Y. Yoda, A. Yoshimi and K. Yoshimura, J. Synchrotron Rad. 28, 111-119 (2021)

published in the Journal of synchrotron radiation, 2021

High harmonic generation in AlN due to out-of-surface electron orbitals

J. Seres, E. Seres, C. Serrat, T. Schumm

OSA Publishing, 2021

Probing the relaxed relaxion at the luminosity and precision frontiers

Abhishek Banerjee, Hyungjin Kim, Oleksii Matsedonskyi, Gilad Pereza and Marianna S. Safronova

Published in the Journal of High Energy Physics on July 22, 2020

DFT calculation of 229thorium-doped magnesium fluoride for nuclear laser spectroscopy

M. Pimon, J. Gugler, P. Mohn, G. A. Kazakov, N. Mauser, T. Schumm

published in Journal of Physics on March 27, 2020

“Development of a 229mTh Nuclear Clock: Status and Perspectives for a Unique Quantum Sensor”

Intern. Workshop ‘100 years of Nuclear Isomers‘, 2.-4.5.2022, Berlin,

P.G. Thirolf, invited talk

“Development of a 229mTh Nuclear Clock: Status and Perspectives for a Unique Quantum Sensor”

51st Winter Colloquium on the Physics of Quantum Electronics, 10.-14.1.2022, Snowbird (Utah/US):

P.G. Thirolf, invited talk

“The 229mTh isomer: Doorway to a Nuclear Clock”

Institute Seminar, Univ. Szczechin (Poland), 15.12.2021,

P.G. Thirolf, invited talk:

“Development of a 229mTh Nuclear Clock: Status and Perspectives for a Unique Quantum Sensor”

IEEE-Nuclear Science Symposium and Medical Imaging Conference, Workshop of ‘Quantum Sensing for Biomedical Applications’, 17.10.2021 (online),

P.G. Thirolf, invited talk

“High precision laser spectroscopy towards the 229mTh nuclear clock”

Helmholtz-Institut Jena, Lecture Week, 11.-14.10.2021,

P.G. Thirolf, invited lecture series

“Perspectives towards the 229mTh Nuclear Clock”

International Workshop ‘Shapes and Dynamics of Atomic Nuclei: Contemporary Aspects’, SDANCA 21, 16.-18.9.2021, Sofia/Bulgaria,

P.G. Thirolf, invited talk

Publications

Noncollinear enhancement resonator with intrinsic pulse synchronization and alignment employing wedge mirrors

Laser Excitation of the Th-229 Nucleus

Sympathetic cooling of trapped ${Th}^{3 +}$ alpha-recoil ions for laser spectroscopy

Observation of the radiative decay of the ²²⁹Th nuclear clock isomer

Photon lights a path towards a nuclear clock

Excitation and probing of low-energy nuclear states at high-energy storage rings

Extending Our Knowledge about the ²²⁹Th Nuclear Isomer

Nuclear clocks for testing fundamental physics

Role of triple excitations in calculating different properties of Ba+

The thorium-229 low-energy isomer and the nuclear clock

Absolute X-ray energy measurement using a highly accurate angle encoder

Phase Transition in the ‘Thorium-Isomer-Story’

Nuclear Excitation of the 229Th Isomer via Defect States in Doped Crystals

Ein Isomer als Uhrwerk

“Development of a 229mTh Nuclear Clock: Status and Perspectives for a Unique Quantum Sensor”

“Development of a 229mTh Nuclear Clock: Status and Perspectives for a Unique Quantum Sensor”

“The 229mTh isomer: Doorway to a Nuclear Clock”

“Development of a 229mTh Nuclear Clock: Status and Perspectives for a Unique Quantum Sensor”

“High precision laser spectroscopy towards the 229mTh nuclear clock”

“Perspectives towards the 229mTh Nuclear Clock”

Publications

Observation of the radiative decay of the 229Th nuclear clock isomer

Photon lights a path towards a nuclear clock

“Development of a 229mTh Nuclear Clock: Status and Perspectives for a Unique Quantum Sensor”

“Development of a 229mTh Nuclear Clock: Status and Perspectives for a Unique Quantum Sensor”

“The 229mTh isomer: Doorway to a Nuclear Clock”

“Development of a 229mTh Nuclear Clock: Status and Perspectives for a Unique Quantum Sensor”

“High precision laser spectroscopy towards the 229mTh nuclear clock”

“Perspectives towards the 229mTh Nuclear Clock”

Observation of the radiative decay of the ²²⁹Th nuclear clock isomer