Thorium nuclear clocks for fundamental tests of physics

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Implements the Open Research Data Pilot

Publicaciones

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

Autores: Kjeld Beeks, Tomas Sikorsky, Thorsten Schumm, Johannes Thielking, Maxim V. Okhapkin, Ekkehard Peik
Publicado en: Nature Reviews Physics, Edición 3/4, 2021, Página(s) 238-248, ISSN 2522-5820
Editor: Springer Nature
DOI: 10.1038/s42254-021-00286-6

Nuclear coherent population transfer to the $^{229m}$Th isomer using x-ray pulses

Autores: Kirschbaum, Tobias; Minkov, Nikolay; Pálffy, Adriana
Publicado en: Physical Review C, Edición 5, 2022, Página(s) 064313, ISSN 2643-1564
Editor: American Physical Society
DOI: 10.1103/physrevc.105.064313

Group delay dispersion tuned femtosecond Kerr-lens mode-locked Ti:sapphire laser

Autores: E. Seres; J. Seres; T. Schumm
Publicado en: Optics Continuum, Edición 1, 2022, ISSN 2770-0208
Editor: Optica Publishing Group
DOI: 10.1364/optcon.456954

Band Gap Calculations for Thorium‐Doped LiCAF

Autores: Thorsten Schumm; Peter Mohn; Martin Pimon
Publicado en: Advanced Theory and Simulations, Edición 5, 2022, ISSN 2513-0390
Editor: Wiley-VCH GmbH
DOI: 10.1002/adts.202200185

Probing the relaxed relaxion at the luminosity and precision frontiers

Autores: Abhishek Banerjee, Hyungjin Kim, Oleksii Matsedonskyi, Gilad Perez, Marianna S. Safronova
Publicado en: Journal of High Energy Physics, Edición 2020/7, 2020, ISSN 1029-8479
Editor: Institute of Physics Publishing
DOI: 10.1007/jhep07(2020)153

Ab-Initio Study of Calcium Fluoride Doped with Heavy Isotopes

Autores: Thorsten Schumm; Peter Mohn; Andreas Grüneis; Martin Pimon
Publicado en: Crystals, Edición 12, 2022, ISSN 2073-4352
Editor: Multidisciplinary Digital Publishing Institute (MDPI)
DOI: 10.3390/cryst12081128

Contribution of negative-energy states to multipolar polarizabilities of the Sr optical lattice clock

Autores: S. G. Porsev; M. G. Kozlov; M. S. Safronova
Publicado en: Phys. Rev. A, Edición 11, 2023, Página(s) L051102, ISSN 2643-1564
Editor: American Physical Society
DOI: 10.1103/physreva.108.l051102

Nonperturbative Generation of Harmonics by Nanometer-Scale Localized Electronic States on the Surface of Bulk Materials and Nano-Films

Autores: Jozsef Seres; Enikoe Seres; Eva Céspedes; Leyre Martinez-de-Olcoz; Miguel Zabala; Thorsten Schumm
Publicado en: Optics; Volume 4; Edición 1; Pages: 246-257, Edición 7, 2023, Página(s) 4, ISSN 2328-7810
Editor: Science Publishing Group
DOI: 10.3390/opt4010017

Nuclear Excitation of the ^{229}Th Isomer via Defect States in Doped Crystals.

Autores: Brenden Scott Nickerson; Martin Pimon; Pavlo V. Bilous; Johannes Gugler; Kjeld Beeks; Tomas Sikorsky; Peter Mohn; Thorsten Schumm; Adriana Pálffy
Publicado en: Physical Review Letters, Edición 4, 2020, Página(s) 032501, ISSN 1079-7114
Editor: American Physical Society
DOI: 10.1103/physrevlett.125.032501

New Measurement Resolves Key Astrophysical Fe XVII Oscillator Strength Problem

Autores: Steffen Kühn; Charles Cheung; Natalia S. Oreshkina; René Steinbrügge; Moto Togawa; Sonja Bernitt; Lukas Berger; Jens Buck; Moritz Hoesch; Jörn Seltmann; Florian Trinter; Christoph H. Keitel; Mikhail G. Kozlov; Sergey G. Porsev; Ming Feng Gu; F. Scott Porter; Thomas Pfeifer; Maurice A. Leutenegger; Zoltán Harman; Marianna S. Safronova; José R. Crespo López-Urrutia; Chintan Shah
Publicado en: Physical review letters 129(24), 245001 (2022). doi:10.1103/PhysRevLett.129.245001, Edición 2, 2022, ISSN 0031-9007
Editor: American Physical Society
DOI: 10.15120/gsi-2022-00990

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

Autores: Sandro Kraemer; Janni Moens; Michail Athanasakis-Kaklamanakis; Silvia Bara; Kjeld Beeks; Premaditya Chhetri; Katerina Chrysalidis; Arno Claessens; Thomas E. Cocolios; João G. M. Correia; Hilde De Witte; Rafael Ferrer; Sarina Geldhof; Reinhard Heinke; Niyusha Hosseini; Mark Huyse; Ulli Köster; Yuri Kudryavtsev; Mustapha Laatiaoui; Razvan Lica; Goele Magchiels; Vladimir Manea; Clement Merckling; L
Publicado en: "Nature, 2023, 617 (7962), pp.706-710. ⟨10.1038/s41586-023-05894-z⟩", Edición 32, 2023, ISSN 1476-4687
Editor: Springer
DOI: 10.1038/s41586-023-05894-z

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

Autores: Jozsef Seres; E. Seres; Carles Serrat; Thorsten Schumm
Publicado en: OSA Continuum, Edición 4, 2020, ISSN 2578-7519
Editor: Optica Publishing Group
DOI: 10.5281/zenodo.4441972

Low-lying energy levels of 229 Th 35+ and the electronic bridge process

Autores: S G Porsev, C Cheung, M S Safronova
Publicado en: Quantum Science and Technology, Edición 6/3, 2021, Página(s) 034014, ISSN 2058-9565
Editor: IOPScience
DOI: 10.1088/2058-9565/ac08f1

Calculation of energies and hyperfine structure constants of 233U^+ and 233U

Autores: Porsev, S. G.; Cheung, C.; Safronova, M. S.
Publicado en: Physical Review A, Edición 12, 2023, ISSN 2469-9926
Editor: American Physical Society
DOI: 10.1103/physreva.106.042810

Growth and characterization of thorium doped calcium fluoride single crystals

Autores: Kjeld Beeks
Publicado en: Nature Scientific reports, Edición 13, 2023, Página(s) 3897, ISSN 2045-2322
Editor: Nature Publishing Group
DOI: 10.1038/s41598-023-31045-5

Nonlinear propagation effect in x-ray parametric amplification during high harmonic generation

Autores: J. Seres; E. Seres; C. Serrat; T. H. Dinh; N. Hasegawa; M. Ishino; M. Nishikino; K. Nakano; S. Namba
Publicado en: Journal of the Optical Society of America B, Edición 39, 2022, ISSN 1084-7529
Editor: Optical Society of America
DOI: 10.1364/josab.454902

The theory of direct laser excitation of nuclear transitions

Autores: Lars von der Wense, Pavlo V. Bilous, Benedict Seiferle, Simon Stellmer, Johannes Weitenberg, Peter G. Thirolf, Adriana Pálffy, Georgy Kazakov
Publicado en: The European Physical Journal A, Edición 56/7, 2020, ISSN 1434-6001
Editor: Springer Verlag
DOI: 10.1140/epja/s10050-020-00177-x

Vacuum-ultraviolet laser source for spectroscopy of trapped thorium ions

Autores: J Thielking; K Zhang; J Tiedau; J Zander; G Zitzer; M V Okhapkin; E Peik
Publicado en: New Journal of Physics, Vol 25, Iss 8, p 083026 (2023), Edición 9, 2023, Página(s) 083026, ISSN 1367-2630
Editor: Institute of Physics Publishing
DOI: 10.1088/1367-2630/aced1b

Driven electronic bridge processes via defect states in Th 229 -doped crystals

Autores: Brenden S. Nickerson, Martin Pimon, Pavlo V. Bilous, Johannes Gugler, Georgy A. Kazakov, Tomas Sikorsky, Kjeld Beeks, Andreas Grüneis, Thorsten Schumm, Adriana Pálffy
Publicado en: Physical Review A, Edición 103/5, 2021, Página(s) 053120, ISSN 2469-9926
Editor: American Physical Society
DOI: 10.1103/physreva.103.053120

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

Autores: Junlan Jin; Hendrik Bekker; Tobias Kirschbaum; Yuri A. Litvinov; Adriana Pálffy; Jonas Sommerfeldt; Andrey Surzhykov; Peter G. Thirolf; Dmitry Budker
Publicado en: Physical review research 5(2), 023134 (2023). doi:10.1103/PhysRevResearch.5.023134, Edición 8, 2023, ISSN 2643-1564
Editor: American Physical Society
DOI: 10.1103/physrevresearch.5.023134

SpaceQ -- Direct Detection of Ultralight Dark Matter with Space Quantum Sensors

Autores: Yu-Dai Tsai; Joshua Eby; Marianna Safronova
Publicado en: Nature Astronomy, Edición 22, 2023, Página(s) 113, ISSN 2397-3366
Editor: Springer Nature
DOI: 10.1038/s41550-022-01833-6

Optical telecommunications-band clock based on neutral titanium atoms

Autores: Scott Eustice; Dmytro Filin; Jackson Schrott; Sergey Porsev; Charles Cheung; Diego Novoa; Dan M. Stamper-Kurn; Marianna S. Safronova
Publicado en: Phys. Rev. A, Edición 24, 2023, Página(s) L051102, ISSN 1050-2947
Editor: American Physical Society
DOI: 10.1103/physreva.107.l051102

Absolute X-ray energy measurement using a high-accuracy angle encoder

Autores: Takahiko Masuda, Tsukasa Watanabe, Kjeld Beeks, Hiroyuki Fujimoto, Takahiro Hiraki, Hiroyuki Kaino, Shinji Kitao, Yuki Miyamoto, Koichi Okai, Noboru Sasao, Makoto Seto, Thorsten Schumm, Yudai Shigekawa, Kenji Tamasaku, Satoshi Uetake, Atsushi Yamaguchi, Yoshitaka Yoda, Akihiro Yoshimi, Koji Yoshimura
Publicado en: Journal of Synchrotron Radiation, Edición 28/1, 2021, Página(s) 111-119, ISSN 1600-5775
Editor: International Union of Crystallography
DOI: 10.1107/s1600577520014526

Precision Calculation of Hyperfine Constants for Extracting Nuclear Moments of Th229

Autores: S. G. Porsev; M. S. Safronova; M. G. Kozlov
Publicado en: Physical Review Letters, Edición 127, 2021, ISSN 0031-9007
Editor: American Physical Society
DOI: 10.1103/physrevlett.127.253001

Role of triple excitations in calculating different properties of Ba +

Autores: S. G. Porsev, M. S. Safronova
Publicado en: Physical Review A, Edición 103/4, 2021, Página(s) 042815, ISSN 2469-9926
Editor: American Physical Society
DOI: 10.1103/physreva.103.042815

Extending Our Knowledge about the 229Th Nuclear Isomer

Autores: Seiferle, Benedict Moritz, Daniel Scharl, Kevin Ding, Shiqian Zacherl, Florian Löbell, Lilli
Publicado en: Atoms, 2022, ISSN 2218-2004
Editor: MDPI
DOI: 10.3390/atoms10010024

Integrating Superregenerative Principles in a Compact, Power-Efficient NMR/NQR Spectrometer: A Novel Approach with Pulsed Excitation

Autores: Sikorsky, Tomas; Pelczar, Andrzej; Schneider, Stephan; Schumm, Thorsten
Publicado en: Nuclear Instruments and Methods in Physics Research Section A, Edición 1062, 2023, Página(s) 169239, ISSN 1872-9576
Editor: Elsevier
DOI: 10.1016/j.nima.2024.169239

'Phase Transition' in the 'Thorium-Isomer Story'

Autores: P.G. Thirolf, B. Seiferle, L. v.d. Wense, I. Amersdorffer, D. Moritz, J. Weitenberg
Publicado en: Acta Physica Polonica B, Edición 51, 2020, Página(s) 561-570, ISSN 0587-4254
Editor: Jagellonian University
DOI: 10.1103/physrevc.103.014313

Nuclear clocks for testing fundamental physics

Autores: E Peik, T Schumm, M S Safronova, A Pálffy, J Weitenberg, P G Thirolf
Publicado en: Quantum Science and Technology, Edición 6/3, 2021, Página(s) 034002, ISSN 2058-9565
Editor: IOP Publishing
DOI: 10.1088/2058-9565/abe9c2

"Enhancing divalent optical atomic clocks with the <mml:math xmlns:mml=""http://www.w3.org/1998/Math/MathML""><mml:mrow><mml:mmultiscripts><mml:mrow /><mml:mprescripts /><mml:none /><mml:mn>1</mml:mn></mml:mmultiscripts><mml:msub><mml:mi>S</mml:mi><mml:mn>0</mml:mn></mml:msub><mml:mo>↔</mml:mo><mml:msup><mml:mrow /><mml:mn>3</mml:mn></mml:msup><mml:msub><mml:mi>P</mml:mi><mml:mn>2</mml:mn></mml:ms"

Autores: Matthew A. Bohman; Sergey G. Porsev; David B. Hume; David R. Leibrandt; Marianna S. Safronova
Publicado en: Phys. Rev. A, Edición 8, 2023, Página(s) 053120, ISSN 1050-2947
Editor: American Physical Society
DOI: 10.1103/physreva.108.053120

Electronic Bridge Excitation in Highly Charged Th 229 Ions

Autores: Pavlo V. Bilous; H. Bekker; H. Bekker; Julian C. Berengut; Julian C. Berengut; Benedict Seiferle; Lars von der Wense; Peter G. Thirolf; Thomas Pfeifer; José R. Crespo López-Urrutia; Adriana Pálffy
Publicado en: Physical Review Letters, Edición 2, 2020, ISSN 0031-9007
Editor: American Physical Society
DOI: 10.1103/physrevlett.124.192502

The phenomenology of quadratically coupled ultra light dark matter

Autores: Abhishek Banerjee; Gilad Perez; Marianna Safronova; Inbar Savoray; Aviv Shalit
Publicado en: Journal of High Energy Physics, Vol 2023, Iss 10, Pp 1-62 (2023), Edición 21, 2023, ISSN 1029-8479
Editor: Institute of Physics Publishing
DOI: 10.1007/jhep10(2023)042

229mTh isomer from a nuclear model perspective

Autores: Nikolay Minkov and Adriana Pálffy
Publicado en: Physical Review C, 2021, ISSN 2469-9985
Editor: American Physical Society
DOI: 10.1103/PhysRevC.103.014313

Measurement of the Th 229 Isomer Energy with a Magnetic Microcalorimeter

Autores: Tomas Sikorsky, Jeschua Geist, Daniel Hengstler, Sebastian Kempf, Loredana Gastaldo, Christian Enss, Christoph Mokry, Jörg Runke, Christoph E. Düllmann, Peter Wobrauschek, Kjeld Beeks, Veronika Rosecker, Johannes H. Sterba, Georgy Kazakov, Thorsten Schumm, Andreas Fleischmann
Publicado en: Physical Review Letters, Edición 125/14, 2020, ISSN 0031-9007
Editor: American Physical Society
DOI: 10.1103/physrevlett.125.142503

The Thorium-Isomer: Heartbeat for a Nuclear Clock

Autores: Peter G. Thirolf, B. Seiferle, L. v. d. Wense
Publicado en: Nuclear Physics News, Edición 31/1, 2021, Página(s) 13-18, ISSN 1061-9127
Editor: Taylor and Francis Inc.
DOI: 10.1080/10619127.2020.1832809

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