Title The Strontium Molecular Lattice Clock : Vibrational Spectroscopy with Hertz-Level Accuracy Author(s) Leung, Kon H Publication Cham, 1. Imprint: Springer 2. Springer Nature Switzerland, 2024. Description XV, 161 p. 57 illus., 53 illus. in color : online resource Abstract Note This thesis describes how the rich internal degrees of freedom of molecules can be exploited to construct the first ???clock??? based on ultracold molecules, rather than atoms. By holding the molecules in an optical lattice trap, the vibrational clock is engineered to have a high oscillation quality factor, facilitating the full characterization of frequency shifts affecting the clock at the hertz level. The prototypical vibrational molecular clock is shown to have a systematic fractional uncertainty at the 14th decimal place, matching the performance of the earliest optical atomic lattice clocks. As part of this effort, deeply bound strontium dimers are coherently created, and ultracold collisions of these Van der Waals molecules are studied for the first time, revealing inelastic losses at the universal rate. The thesis reports one of the most accurate measurements of a molecule???s vibrational transition frequency to date. The molecular clock lays the groundwork for explorations into terahertz metrology, quantum chemistry, and fundamental interactions at atomic length scales ISBN,Price 9783031476471 Keyword(s) 1. ATOMS 2. Atoms and molecules in external fields 3. EBOOK 4. EBOOK - SPRINGER 5. LASER 6. LASERS 7. MEASUREMENT 8. Measurement Science and Instrumentation 9. MEASURING INSTRUMENTS 10. METROLOGY 11. Metrology and Fundamental Constants 12. MOLECULAR SPECTROSCOPY 13. MOLECULES 14. QUANTUM CHEMISTRY Item Type eBook Multi-Media Links Please Click here for eBook Circulation Data Accession#   Call# Status Issued To Return Due On Physical Location I12945     On Shelf