【摘要】 量子纠缠是现代量子理论中非常重要的研究课题之一。随着量子纠缠光的制备以及相关应用技术的不断提升,目前纠缠光子的二阶关联特性在量子测量、量子成像、信息安全等领域中都有广泛的研究。通过使用Ⅱ类相位匹配晶体(BBO晶体)参量下转换产生偏振光子对作为光源,提出利用光纤延迟器为调节器的实验方案,利用HBT干涉测量原理,通过测量纠缠光场的二阶关联特性推算出测距结果,并利用实验上验证了这一方案的可行性。更多还原

【Abstract】 Quantum entanglement is one of the most important research topics in modern quantum theory. With the development of the preparation and application of quantum entangled light, the second-order correlation of entangled photons is extensively explored in quantum measurement, quantum imaging, information security and other fields. By using class Ⅱ phase matched crystal(BBO crystal) parameter down conversion to produce polarized photon pairs as the light source, an experimental scheme using fiber retarder as the regulator is proposed. According to the principle of HBT interferometry, the ranging results are calculated by measuring the second-order correlation characteristics of the entangled light field, and the feasibility of this scheme is verified experimentally.更多还原