Mechanical oscillator

In the center is an image showing the mechanical oscillator which was cooled to its ground state and then successfully excited by a single quanta of energy. Depicted above is the simulation of the shape of the mechanical mode that is used in the experiment. The bottom picture shows an artist's impression of a quasi-probabilistic distribution of the quantum state.

Credits: Moritz Forsch. Kavli Institute of Nanoscience, Delft University of Technology.