论文标题
减少资源,用于同时生成两种类型的连续变量非古典状态
Resource reduction for simultaneous generation of two types of continuous variable nonclassical states
论文作者
论文摘要
我们从一个类型的0相匹配光学参数放大(OPA)以及随后的两个环形滤波器(RFC)中同时生成和检测两种连续可变状态的同时生成和检测。 OPA的输出字段包括基带ω0和边带模式ω0+/-nΩf受试者患有空腔谐振条件,该条件由两个级联的RFC隔开。第一个RFC与泵波长ω0的一半共鸣,并且传输的基带组件是挤压状态。第一个RFC的反射场,包括边带模式ω0+/-ωf,由第二个RFC分开,构造Einstein-Podolsky-Rosen-Rosen-Rosen-Rosen纠缠状态。所有自由,包括用于边带分离的滤波器和这些边带测量的相对相位,都已积极稳定。挤压状态的噪声差异低于射击噪声限制(SNL),纠缠状态的正交振幅和正交相位差异的相关差异均低于相应的SNL。
We demonstrate experimentally the simultaneous generation and detection of two types of continuous variable nonclassical states from one type-0 phase-matching optical parametric amplification (OPA) and subsequent two ring filter cavities (RFCs). The output field of the OPA includes the baseband ω0 and sideband modes ω0+/-nωf subjects to the cavity resonance condition, which are separated by two cascaded RFCs. The first RFC resonates with half the pump wavelength ω0 and the transmitted baseband component is a squeezed state. The reflected fields of the first RFC, including the sideband modes ω0+/-ωf, are separated by the second RFC, construct Einstein-Podolsky-Rosen entangled state. All freedoms, including the filter cavities for sideband separation and relative phases for the measurements of these sidebands, are actively stabilized. The noise variance of squeezed states is 10.2 dB below the shot noise limit (SNL), the correlation variances of both quadrature amplitude-sum and quadrature phase-difference for the entanglement state are 10.0 dB below the corresponding SNL.