<> "The repository administrator has not yet configured an RDF license."^^ . <> . . "Towards a nuclear clock with the 229Th isomeric transition"^^ . "The 229Th nucleus with its 7.8 eV isomeric state is a unique candidate for the first nuclear\r\noptical clock at an exceptional accuracy of 10−19. Due to the low isomeric transition\r\nenergy, the coupling to the atomic shell in the processes of internal conversion (IC) or\r\nelectron bridge (EB) is very strong. In this work we investigate theoretically the IC and\r\nEB mechanisms and design novel laser-assisted schemes aimed at (i) a more accurate\r\ndetermination of the isomer energy Em and (ii) efficient excitation of the isomer. On\r\nthe one hand, we show how IC occurring from excited electronic states of Th ions can\r\nbe used to determine the isomeric transition energy. We also propose a new approach\r\nto measure the isomer energy with laser spectroscopy accuracy via laser-induced EB in\r\n229Th3+ ions. On the other hand, we put forward possible isomer excitation schemes\r\nbased on the EB process in highly charged Th ions or on laser-assisted nuclear excitation\r\nby electron capture of the 29.19 keV nuclear state lying directly above the isomer. Our\r\nresults show that EB in highly charged ions which allow optical driving with high-power\r\nlasers should lead to efficient excitation. Such a setup using ion traps might become\r\nrelevant for the future development of the nuclear clock."^^ . "2019" . . . . . . . "Pavlo"^^ . "Bilous"^^ . "Pavlo Bilous"^^ . . . . . . "Towards a nuclear clock with the 229Th isomeric transition (PDF)"^^ . . . "ThesisBilousFinal.pdf"^^ . . . "Towards a nuclear clock with the 229Th isomeric transition (Other)"^^ . . . . . . "indexcodes.txt"^^ . . . "Towards a nuclear clock with the 229Th isomeric transition (Other)"^^ . . . . . . "lightbox.jpg"^^ . . . "Towards a nuclear clock with the 229Th isomeric transition (Other)"^^ . . . . . . "preview.jpg"^^ . . . "Towards a nuclear clock with the 229Th isomeric transition (Other)"^^ . . . . . . "medium.jpg"^^ . . . "Towards a nuclear clock with the 229Th isomeric transition (Other)"^^ . . . . . . "small.jpg"^^ . . "HTML Summary of #25789 \n\nTowards a nuclear clock with the 229Th isomeric transition\n\n" . "text/html" . . . "530 Physik"@de . "530 Physics"@en . .