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Quantum entanglement is a crucial resource for a wide variety of quantumtechnologies. However, the current state-of-art methods to generate quantumentanglement in optomechanical systems are not as efficient as all-opticalmethods utilizing nonlinear crystals. This article proposes a new scheme inwhich two single-mode squeezed light fields are injected into an optomechanicalcavity. We demonstrate through our numerical simulations that the quantumentanglement can be substantially enhanced with the careful selection ofsqueezing strength and squeezing angle of the two quadrature squeezed lightfields. Our results represent a significant improvement in output bipartitephoton-photon entanglement over the previously demonstrated schemes using twocoherent light fields as inputs. These simulations predict a maximum increasein bipartite optical entanglement by a factor of about 6, as well as increasesin the quantum noise of the output light. A perceived loss of quantuminformation at certain squeezing angles is attributed to tripartiteentanglement between the two optical fields and the optomechanical oscillator(OMO). At particular squeezing angles, the bipartite (or tripartite)entanglement can be increased, thus introducing a method of opticallycontrolling the intracavity entanglement. These mechanics can benefit variousoptical quantum technologies utilizing optomechanical entanglement andcontinuous variable quantum optics.

Single-mode input squeezing and tripartite entanglement in three-mode ponderomotive optomechanics simulations