ultracoldionen
Ultracoldionen, or ultracold ions, denotes atomic or molecular ions cooled to ultralow temperatures within electromagnetic traps. At these temperatures, the ions exhibit extremely low motional energy, enabling precise control of both their internal electronic states and their external motion for quantum experiments and metrology.
Cooling methods include laser cooling, starting with Doppler cooling and extending to resolved-sideband cooling that can
Ion traps used for ultracold ions include RF Paul traps, such as linear Paul traps that form
Challenges include excess micromotion, electric-field noise, and heating of motional modes, which limit coherence times and