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 interest to perform laser spectroscopy in the heaviest elements arises from the strong
impact of relativistic effects, electron correlations and quantum electrodynamics on their …

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 …

The radionuclide thorium-229 features an isomer with an exceptionally low excitation energy
that enables direct laser manipulation of nuclear states. It constitutes one of the leading …

We consider theoretically isomeric excitation of Th 229 in a laser-heated cluster. A Th 229
cluster is first radiated by an intense femtosecond laser pulse, causing ionization of the …

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 isomers are the long-lived excited states of nuclei. Therefore, they constitute the
meta-stable landscape of nuclei. The first isomer was probably identified as early as 1921 …

Previously we proposed a new approach of exciting the Th 229 nucleus using laser-driven
electron recollision [Wang, Zhou, Liu, and Wang, Phys. Rev. Lett. 127, 052501 (2021) …

A new concept for narrow-band direct nuclear laser spectroscopy of 229m Th is proposed,
using a single comb mode of a vacuum ultraviolet frequency comb generated from the 7th …

Nuclear excitation cross section of Th 229 from the ground state to the low-lying isomeric
state via inelastic electron scattering is calculated, on the level of Dirac distorted wave Born …