期刊
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
卷 12, 期 16, 页码 3989-3995出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.jpclett.1c00733
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资金
- U.S. Department of Energy, Office of Science, Basic Energy Sciences [DE-SC0019245]
The study explores the use of closed, laser-induced optical transitions for state preparation and measurement in quantum information science. It investigates the design principles and limitations of Ca-O-L molecular constructs supporting optical cycling, with a focus on the size and complexity of the ligands involved.
Closed, laser-induced optical transitions (optical cycling transitions) of molecules can be used for state preparation and measurement in quantum information science and quantum sensing. Increasingly complex molecular species supporting optical cycling can provide new capabilities for quantum science, and it is not clear if there is a limit on their size or complexity. We explore Ca-O-L molecular constructs to support the optical cycling center, Ca, with ligands, L, being arenes. We find that L can be as large as coronene (i.e., CaOC24H11) without losing the diagonality of the Franck-Condon factor (FCF). Furthermore, L can be substituted with electron-withdrawing groups to improve the FCF. Larger L, beyond similar to 7 rings, can disrupt the diagonality of the FCF by closing the HOMO-LUMO ligand electronic state gap and reordering with the local states on the cycling center. Overall, we find that optical cycling can be retained for arenes, and we offer a principle for their design.
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