Hyperfine averaging by dynamic decoupling in a multi-ion lutetium clock

Abstract

We propose and experimentally demonstrate a scheme which effects hyperfine averaging during a Ramsey interrogation of a clock transition. The method eliminates the need to average over multiple optical transitions, reduces the sensitivity of the clock to its environment, and reduces inhomogeneous broadening in a multi-ion clock. The method is compatible with auto-balanced Ramsey spectroscopy, which facilitates elimination of residual shifts due to imperfect implementation and ac Stark shifts from the optical probe. We demonstrate the scheme using correlation spectroscopy of the ${}^1{S}_0$-to-${}^3{D}_1$ clock transition in a three-ion Lu+ clock. From the demonstration we are able to provide a measurement of the ${}^3{D}_1$ quadrupole moment, $\Theta {(}^3{D}_1)=0.634(9)e{a}_0^2$.

5 pages, 2 figures

References in corpus (17)

• Frequency Comparison of Two High-Accuracy Al+ Optical Clocks
• Systematic evaluation of an atomic clock at 2e-18 total uncertainty
• Atomic clock performance beyond the geodetic limit
• Single-Ion Atomic Clock with $3\times 10^{-18}$ Systematic Uncertainty
• Optical clock comparison test of Lorentz symmetry
• A high-precision rf trap with minimized micromotion for an In+ multiple-ion clock
• Auto-Balanced Ramsey Spectroscopy
• Blackbody radiation shift assessment for a lutetium ion clock
• Quantum coherence between two atoms beyond Q=10^15
• Prospects for atomic clocks based on large ion crystals
• Generalized auto-balanced Ramsey spectroscopy of clock transitions
• Precision spectroscopy with two correlated atoms
• Suppressing inhomogeneous broadening in a lutetium multi-ion optical clock
• Probing Time Dilation in Coulomb Crystals in a high-precision Ion Trap
• Atomic Properties of Lu${}^{+}$
• Quadrupole shift cancellation using dynamic decoupling
• Clock-related properties of Lu+

Cited by in corpus (9)

• Simultaneous two initial clock states preparation for thulium optical clock
• Prospects of a Pb${}^{2+}$ ion clock
• Coherent suppression of tensor frequency shifts through magnetic field rotation
• Sub-kelvin temperature management in ion traps for optical clocks
• Precision measurement of the ${}^3{D}_1$ and ${}^3{D}_2$ quadrupole moments in Lu${}^{+}$
• Quadrupole transitions and quantum gates protected by continuous dynamic decoupling
• Absolute frequency measurement of a Lu${}^{+}$ ${(}^3{\mathrm{D}}_1)$ optical frequency standard via link to international atomic time
• Hyperfine-mediated effects in a Lu${}^{+}$ optical clock
• Multilevel Electromagnetically Induced Transparency Cooling