E. Peik

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physics.atom-ph2026

A multi-ion optical clock with $5 \times 1 0^{- 19}$ uncertainty

Melina Filzinger, Martin R. Steinel, Jian Jiang +4

Today's most accurate clocks are based on laser spectroscopy of electronic transitions in single trapped ions and feature fractional frequency uncertainties below $1 \times 1 0^{- 18}$ …

physics.atom-ph2025

Laser spectroscopy on the hyperfine structure and isotope shift of sympathetically cooled $^{229}$ Th $^{3 +}$ ions

G. Zitzer, J. Tiedau, Ch. E. DÃ¼llmann +2

The hyperfine structure of $^{229}$ Th $^{3 +}$ ions in the nuclear ground state is investigated via laser spectroscopy of trapped Th $^{3 +}$ ions that are sympathetically cooled by la…

A multi-ion optical clock with 5×10−19 uncertainty

Laser spectroscopy on the hyperfine structure and isotope shift of sympathetically cooled 229Th3+ ions

A multi-ion optical clock with $5 \times 1 0^{- 19}$ uncertainty

Laser spectroscopy on the hyperfine structure and isotope shift of sympathetically cooled $^{229}$ Th $^{3 +}$ ions