State-dependent potentials for the and clock states of neutral ytterbium atoms
arXiv:2305.20084 · doi:10.1103/PhysRevA.108.053325
Abstract
We present measurements of three distinctive state-(in)dependent wavelengths for the clock transition in atoms. Specifically, we determine two magic wavelengths at THz and THz, where the differential light shift on the clock transition vanishes, and one tune-out wavelength at THz, where the polarizability of the ground state exhibits a zero crossing. The two new magic wavelengths are identified by spectroscopically interrogating cold atoms on the clock transition in a one-dimensional optical lattice. The ground-state tune-out wavelength is determined via a parametric heating scheme. With a simple empirical model, we then extrapolate the ground and excited state polarizability over a broad range of wavelengths in the visible spectrum.
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