CAJ | 학술논문

用高灵敏度光谱仪实测纠缠点附近S PDC光场的波长-空间位置关系、强度-空间位置关系，辅助定位光场中的纠缠点位置，搭建双光子偏振纠缠源。测量不同条件下的符合对比度，计算Bell不等式，验证了量子力学的完备性。该方法提升了传统纠缠源实验的教学品质，同时降低此类传统实验的操作难度，减少学生完成纠缠源实验所需时。
용고령민도광보의실측규전점부근S PDC광장적파장-공간위치관계、강도-공간위치관계，보조정위광장중적규전점위치，탑건쌍광자편진규전원。측량불동조건하적부합대비도，계산Bell불등식，험증료양자역학적완비성。해방법제승료전통규전원실험적교학품질，동시강저차류전통실험적조작난도，감소학생완성규전원실험소수시。
A quantum entanglement source was built by analyzing spontaneous parametric down-conversion (SPDC) light field though point location technique ,which employed a high sensitivity spectrograph as a pre-detector to measure the wavelength-space and intensity-space relations .Using this technique ,a high-quality bi-photon polarization entanglement source was obtained .The Bell ine-quality was calculated by measuring the coincidence contrast in different conditions ,and the complete-ness of quantum mechanics was verified .Consequently ,this made the traditional quantum entangle-ment experiment easier and efficient ,and it was possible to get more students involved in .