Line Plot from Scientific Research

Phonon population with 3 Ω 0 versus the intracavity mean power P . Phonon laser with 3 Ω 0 (green dots) or thermal phonons (grey curve) can be clearly observed for different cases, with the corresponding power spectra shown in the inset. Here the dots are mean values, and error bars denote ±1 s.d. of each measurement, consisting of 5 × 10 5 samples.

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