Towards a 229Th-based nuclear clock

Abstract

An overview over the current status of the development of a nuclear clock based on the state of lowest known nuclear excitation energy in ${}^{229}$Th is presented. The text is especially written for the interested reader without any particular knowledge in this field of research. It is thus ideal as an introductory reading to get a broad overview over the various different aspects of the field, in addition it can serve as a guideline for future research. An introductory part is provided, giving a historic context and explaining the fundamental concept of clocks. Finally, potential candidates for nuclear clocks other than ${}^{229}$Th are discussed.

References in corpus (23)

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• Systematic evaluation of an atomic clock at 2e-18 total uncertainty
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• Radioluminescence and photoluminescence of Th:CaF${}_2$ crystals
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• Measuring the Th-229 nuclear isomer transition with U-233 doped crystals
• Optomechanically induced transparency of x-rays via optical control
• Hyperfine structure in ${}^{229g}$Th${}^{3+}$ as a probe of the ${}^{229g}$Th $\to$ ${}^{229m}$Th nuclear excitation energy
• Prospects for measuring the 229Th isomer energy using a metallic magnetic microcalorimeter
• Feasibility Study of Internal Conversion Electron Spectroscopy of ${}^{229m}$Th

Cited by in corpus (13)

• Measurement of the ${}^{229}$Th isomer energy with a magnetic micro-calorimeter
• Sensitivity of ${}^{229}$Th nuclear clock transition to variation of the fine-structure constant
• The ${}^{229}$Th isomer: prospects for a nuclear optical clock
• Concepts for direct frequency-comb spectroscopy of ${}^{229\text{m}}$Th and an internal-conversion-based solid-state nuclear clock
• The theory of direct laser excitation of nuclear transitions
• Trapping and sympathetic cooling of single thorium ions for spectroscopy
• XUV frequency comb operation in an astigmatism-compensated enhancement cavity
• An alternative approach to populate and study the ${}^{229}$Th nuclear clock isomer
• All-solid-state VUV frequency comb at 160 nm using multi-harmonic generation in a non-linear femtosecond enhancement cavity
• The concept of laser-based conversion electron Mössbauer spectroscopy for a precise energy determination of ${}^{229m}$Th
• A cryogenic Paul trap for probing the nuclear isomeric excited state ${}^{229\text{m}}$Th${}^{3+}$
• Towards Flexible Intensity Control of Resonantly Scattered $\gamma$-Rays Using Multi-Frequency Vibrating Resonant Absorber
• Laser Resonance Chromatography of ${}^{229}$Th${}^{3+}$ in He: an ab initio investigation