Optical Lattice Induced Light Shifts in an Yb Atomic Clock

Abstract

We present an experimental study of the lattice induced light shifts on the 1S_0-3P_0 optical clock transition (v_clock~518 THz) in neutral ytterbium. The ``magic'' frequency, v_magic, for the 174Yb isotope was determined to be 394 799 475(35)MHz, which leads to a first order light shift uncertainty of 0.38 Hz on the 518 THz clock transition. Also investigated were the hyperpolarizability shifts due to the nearby 6s6p 3P_0 - 6s8p 3P_0, 6s8p 3P_2, and 6s5f 3F_2 two-photon resonances at 759.708 nm, 754.23 nm, and 764.95 nm respectively. By tuning the lattice frequency over the two-photon resonances and measuring the corresponding clock transition shifts, the hyperpolarizability shift was estimated to be 170(33) mHz for a linear polarized, 50 uK deep, lattice at the magic wavelength. In addition, we have confirmed that a circularly polarized lattice eliminates the J=0 - J=0 two-photon resonance. These results indicate that the differential polarizability and hyperpolarizability frequency shift uncertainties in a Yb lattice clock could be held to well below 10^-17.

Accepted to PRL

References in corpus (4)

• Degenerate Fermi Gases of Ytterbium
• ${}^{87}$Sr lattice clock with inaccuracy below 10${}^{-15}$
• Improved frequency measurement of a one-dimensional optical lattice clock with a spin-polarized fermionic ${}^{87}$Sr isotope
• Optical Lattice Polarization Effects on Hyperpolarizability of Atomic Clock Transitions

Cited by in corpus (17)

• Observation of two-orbital spin-exchange interactions with ultracold SU(N)-symmetric fermions
• Direct observation of coherent inter-orbital spin-exchange dynamics
• Spin squeezing of a cold atomic ensemble with the nuclear spin of one-half
• The absolute frequency of the 87Sr optical clock transition
• One-Dimensional Optical Lattice Clock with a Fermionic 171Yb Isotope
• Frequency ratios of Sr, Yb and Hg based optical lattice clocks and their applications
• Frequency evaluation of the doubly forbidden ${}^1{S}_0{\to }^3{P}_0$ transition in bosonic ${}^{174}$Yb
• Decoherence and Collisional Frequency Shifts of Trapped Bosons and Fermions
• Determination of the 5d6s 3D1 state lifetime and blackbody radiation clock shift in Yb
• Strategies for reducing the light shift in atomic clocks
• Doppler-free spectroscopy of molecular iodine using a frequency-stable light source at 578 nm
• Measurement of magic wavelengths for the 40Ca+ clock transition
• Experimental constraints on the polarizabilities of the 6s^2 1S0 and 6s6p 3P0 states of Yb
• Magic radio-frequency dressing of nuclear spins in high-accuracy optical clocks
• Doppler-free Yb Spectroscopy with Fluorescence Spot Technique
• Measurement of dynamic Stark polarizabilities by analyzing spectral lineshapes of forbidden transitions
• Polarization-Mixing in Optical Lattices with Uniaxial Anisotropy