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

K Beeks, T Sikorsky, T Schumm, J Thielking… - Nature Reviews …, 2021 - nature.com
The 229Th nucleus has an isomeric state at an energy of about 8 eV above the ground state,
several orders of magnitude lower than typical nuclear excitation energies. This has inspired …

The Th isomer: prospects for a nuclear optical clock

L von der Wense, B Seiferle - The European Physical Journal A, 2020 - Springer
The proposal for the development of a nuclear optical clock has triggered a multitude of
experimental and theoretical studies. In particular the prediction of an unprecedented …

Nuclear clocks for testing fundamental physics

E Peik, T Schumm, MS Safronova… - Quantum Science …, 2021 - iopscience.iop.org
The low-energy, long-lived isomer in 229 Th, first studied in the 1970s as an exotic feature in
nuclear physics, continues to inspire a multidisciplinary community of physicists. It has …

Year-2017 nuclear quadrupole moments

P Pyykkö - Molecular Physics, 2018 - Taylor & Francis
ABSTRACT A 'year-2017'set of nuclear quadrupole moments, Q, is presented. Compared to
the previous,'year-2008'set, a major revision of the value, or an improvement of the accuracy …

Laser spectroscopic characterization of the nuclear-clock isomer 229mTh

J Thielking, MV Okhapkin, P Głowacki, DM Meier… - Nature, 2018 - nature.com
The isotope 229Th is the only nucleus known to possess an excited state 229mTh in the
energy range of a few electronvolts—a transition energy typical for electrons in the valence …

Nuclear clocks based on resonant excitation of γ-transitions

E Peik, M Okhapkin - Comptes …, 2015 - comptes-rendus.academie-sciences …
Nous passons en revue les idées et concepts d'une horloge fondée sur une transition
radiative entre niveaux nucléaires plutôt qu'électroniques. Ce type d'horloge offre des …

Theoretical study of thorium monoxide for the electron electric dipole moment search: Electronic properties of H3Δ1 in ThO

LV Skripnikov, AV Titov - The Journal of chemical physics, 2015 - pubs.aip.org
Recently, improved limits on the electron electric dipole moment, and dimensionless
constant, kT, P, characterizing the strength of the T, P-odd pseudoscalar–scalar electron …

[HTML][HTML] Communication: Theoretical study of ThO for the electron electric dipole moment search

LV Skripnikov, AN Petrov, AV Titov - The Journal of chemical physics, 2013 - pubs.aip.org
An experiment to search for the electron electric dipole moment (eEDM) on the metastable H
3 Δ 1 state of ThO molecule was proposed and now prepared by the ACME Collaboration …

Hyperfine-structure-resolved laser spectroscopy of many-electron highly charged ions

N Kimura, Priti, Y Kono, P Pipatpakorn… - Communications …, 2023 - nature.com
Hyperfine structures of highly charged ions (HCIs) are favourable spectroscopic targets for
exploring fundamental physics along with nuclear properties. Recent proposals of HCI …

Ground-State Factor of Highly Charged Ions: An Access to the M1 Transition Probability between the Isomeric and Ground Nuclear States

VM Shabaev, DA Glazov, AM Ryzhkov, C Brandau… - Physical Review Letters, 2022 - APS
A method is proposed to determine the M 1 nuclear transition amplitude and hence the
lifetime of the “nuclear clock transition” between the low-lying (∼ 8 eV) first isomeric state …