New study: Determining the 3P0 excited-state tune-out wavelength of 174Yb in a triple-magic lattice
Our new study is online!
In our latest preprint from the Yb hybrid tweezer-lattice experiment we illustrate the first measurement of a tune-out wavelength for a metastable excited state, utilizing novel molasses and sideband cooling techniques in 174Yb.
Precise control of optical potentials is crucial for cold atom experiments and plays a key role in quantum computing and simulation. In particular, tune-out wavelengths for alkaline-earth(-like) atoms such as Yb allow for highly state-selective trapping, offering exciting prospects for new approaches in quantum technologies. While several ground-state tune-out wavelengths have been determined already, a measurement of such a wavelength for a metastable excited state has remained elusive so far, as it has been hindered by inelastic collisions and Raman losses. In our work we demonstrate the first such measurement by determining a tune-out wavelength for the metastable 3P0^3P_0 clock state in 174Yb^{174}\text{Yb} at 576.6 nm. This was achieved by isolating individual atoms in a clock-magic lattice at 759 nm and implementing resolved sideband cooling to extend atom lifetimes beyond 5 s. We further enhanced measurement precision using fluorescence imaging in a triple-magic configuration by identifying a new magic angle for the 3P1^3P_1 state and implementing molasses cooling on this intercombination line. These results pave the way for more precise control over cold atom systems, driving progress in quantum information science.
Original publication:
Determining the 3P0 excited-state tune-out wavelength of 174Yb in a triple-magic lattice
Tim O. Höhn, René A. Villela, Er Zu, Leonardo Bezzo, Ronen M. Kroeze, and Monika Aidelsburger
