Fig. 8: Optomechanical state swapping occurs between two mechanical modes, both of which are initially sideband cooled to their ground state. | Nature Communications

Fig. 8: Optomechanical state swapping occurs between two mechanical modes, both of which are initially sideband cooled to their ground state.

From: Degeneracy-breaking and long-lived multimode microwave electromechanical systems enabled by cubic silicon-carbide membrane crystals

Fig. 8

The measurement of the state-swapping pulse sequence, repeated a thousand times, yields scattering points in quadrature phase space that enable us to calibrate the coherent and thermal components of the phonon numbers for each mechanical mode used in the state swapping.

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