Details
Originalsprache | Englisch |
---|---|
Seitenumfang | 13 |
Publikationsstatus | Elektronisch veröffentlicht (E-Pub) - 26 Feb. 2024 |
Abstract
Zitieren
- Standard
- Harvard
- Apa
- Vancouver
- BibTex
- RIS
2024.
Publikation: Arbeitspapier/Preprint › Preprint
}
TY - UNPB
T1 - An 115In+-172Yb+ Coulomb crystal clock with 2.5x10-18 systematic uncertainty
AU - Hausser, H. N.
AU - Keller, J.
AU - Nordmann, T.
AU - Bhatt, N. M.
AU - Kiethe, J.
AU - Liu, H.
AU - Boehn, M. von
AU - Rahm, J.
AU - Weyers, S.
AU - Benkler, E.
AU - Lipphardt, B.
AU - Doerscher, S.
AU - Stahl, K.
AU - Klose, J.
AU - Lisdat, C.
AU - Filzinger, M.
AU - Huntemann, N.
AU - Peik, E.
AU - Mehlstäubler, T. E.
N1 - 13 pages, 8 figures
PY - 2024/2/26
Y1 - 2024/2/26
N2 - We present a scalable mixed-species Coulomb crystal clock based on the 1S0 ↔ 3P0 transition in 115In+. 172Yb+ ions are co-trapped and used for sympathetic cooling. Reproducible interrogation conditions for mixed-species Coulomb crystals are ensured by a conditional preparation sequence with permutation control. We demonstrate clock operation with a 1In+-3Yb+ crystal, achieving a relative systematic uncertainty of 2.5×10−18 and a relative frequency instability of 1.6×10−15√τ/1s. We report on an absolute frequency measurement with an uncertainty of 1.3×10−16 and optical frequency ratios relative to the 171Yb+ (E3) and 87Sr clock transitions with fractional uncertainties of 4.4 and 4.7 parts in 1018, respectively. The latter are among the most precise measurements of frequency ratios to date and improve upon the previous uncertainty of the 115In+/87Sr ratio by two orders of magnitude. We also demonstrate operation with four 115In+ clock ions, which reduces the instability to 9.2×10−16√τ/1s.
AB - We present a scalable mixed-species Coulomb crystal clock based on the 1S0 ↔ 3P0 transition in 115In+. 172Yb+ ions are co-trapped and used for sympathetic cooling. Reproducible interrogation conditions for mixed-species Coulomb crystals are ensured by a conditional preparation sequence with permutation control. We demonstrate clock operation with a 1In+-3Yb+ crystal, achieving a relative systematic uncertainty of 2.5×10−18 and a relative frequency instability of 1.6×10−15√τ/1s. We report on an absolute frequency measurement with an uncertainty of 1.3×10−16 and optical frequency ratios relative to the 171Yb+ (E3) and 87Sr clock transitions with fractional uncertainties of 4.4 and 4.7 parts in 1018, respectively. The latter are among the most precise measurements of frequency ratios to date and improve upon the previous uncertainty of the 115In+/87Sr ratio by two orders of magnitude. We also demonstrate operation with four 115In+ clock ions, which reduces the instability to 9.2×10−16√τ/1s.
KW - physics.atom-ph
KW - quant-ph
U2 - 10.48550/arXiv.2402.16807
DO - 10.48550/arXiv.2402.16807
M3 - Preprint
BT - An 115In+-172Yb+ Coulomb crystal clock with 2.5x10-18 systematic uncertainty
ER -