Clock-sideband cooling in bosonic Yb atoms and state-dependent potentials

The internal level structure of neutral ytterbium atoms provides a ground and meta-stable clock state pair, which can be used for quantum metrology, simulation and computation applications. Enhanced, state-selective control can be realized by leveraging magic and tune-out wavelengths. The meta-stable ³P₀ state hosts a previously undetermined tune-out wavelength in the visible range. Here, we use a modulation spectroscopy approach to determine this tune-out wavelength. Achieving high precision relies on a long lifetime of the meta-stable state, which we realize by trapping the atoms in a 3D magic-wavelength optical lattice and by employing sideband-resolved cooling on the ultranarrow clock transition to prepare bosonic Yb atoms in the motional ground state of the lattice. In combination with other tune-out and magic wavelengths that have been measured recently, this constitutes a unique toolbox for state-dependent control in our hybrid tweezer-lattice platform, paving the way for novel methods for simulation, state preparation and read-out protocols.