Quantum properties of a triple-coupled optical cavity with injection of a squeezed vacuum field

Abstract

Subject of study. A scheme of quantum manipulation in a coupled optical cavity system composed of a triple-coupled optical cavity with injection of a squeezed vacuum field is proposed. Method. The scheme of quantum manipulation in a coupled optical cavity system is based on analysis of the absorption and dispersion characteristics of the reflection in the classical field and the quantum field. Main results. It was established that the absorption and dispersion of the reflection field with different coupled intensities under the classical field show different characteristics. An electromagnetic induction transparency like effect is observed as the coupled intensities increase and becomes more and more obvious as the coupled intensities increase until the absorption curve becomes completely independent due to the strong coupled intensities. The quantum noise fluctuation corresponding to the amplitude and phase of the reflection field in the quantum field also presented different characteristics. With the increase of coupled intensities, the quantum noise fluctuation curve begins to split. At the same time, the splitting of the quantum noise fluctuation curve changes from one to three, and it completely splits into three Lorentz curves finally. Practical significance. The theoretical results of the scheme demonstrated that multiple (three times) quantum manipulation can be implemented simultaneously in a device, which provides a method for quantum dense coding.