Ground-state cooling of a mechanical oscillator via a hybrid electro-optomechanical system

We present a scheme for ground-state cooling of mechanical resonator by simultaneously coupling it to superconducting qubit and cavity field. The Hamiltonian describing the hybrid system dynamics is systematically derived. process driven red-detuned ac drive on laser optomechanical cavity. have investigated in weak strong regimes both individual system, i.e., assisted cooling, compared them with effective cooling. It shown that more mechanisms, could be applied resolved unresolved sideband regimes.