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Ground-state cooling of mechanical resonators is an important task in quantumoptomechanics, because it is a necessary prerequisite for creation,manipulation, and application of macroscopic mechanical coherence. Here, wepropose a transient-state scheme to accelerate ground-state cooling of amechanical resonator in a three-mode loop-coupled optomechanical system viashortcuts to adiabaticity (STA). We consider four kinds of coupling protocolsand calculate the evolution of the mean phonon number of the mechanicalresonator in both the adiabatic and STA cases. We verify that the ground-statecooling of the mechanical resonator can be achieved with the STA method in amuch shorter period. The STA method can also be generalized to accelerate otheradiabatic processes in cavity optomechanics, and hence this work will open up anew realm of fast optomechanical manipulations.

Accelerated ground-state cooling of an optomechanical resonator via shortcuts to adiabaticity