报告题目：Enhancement of quantum correlations using correlation injection scheme in a cascaded four-wave mixing processes
报告摘要：
Quantum correlations and entanglement shared among multiple quantum beams are important for both fundamental science and the development of quantum technologies. The enhancement for them is necessary and important to implement the specific quantum tasks and goals. Here, we report a correlation injection scheme (CIS) which is an effective method to enhance the quantum correlations and entanglement in the symmetrical cascaded four-wave mixing processes, and the properties of quantum correlations and entanglement can be characterized by the values of the degree of intensity-difference squeezing (DS) and the smallest symplectic eigenvalues, respectively. Our results show that the CIS can enhance the quantum correlations and entanglement under certain conditions, while for other conditions it can only decrease the values of the DS and the smallest symplectic eigenvalues to the level of standard quantum limit, respectively. We believe that our scheme is experimentally accessible and will contribute to a deeper understanding of the manipulations of the quantum correlations and entanglement in various quantum networks.
报告简介：
王海龙，2007-2011年，就读于河南师范大学物理与信息工程学院，获得物理学学士学位；2011-2017年，就读于华东师范大学精密光谱科学与技术国家重点实验室，获得光学博士学位。博士期间主要从事基于四波混频过程产生量子关联多光束的实验与理论研究。
2017-至今工作于中国计量大学光学与电子科技学院，目前研究领域主要包括：量子传感，光纤传感和量子照明等。已发表论文十余篇，发表杂志主要有Physical Review A，Optics Express，Applied Physics Letters，以及Scientific Reports上。正在主持国家自然科学基金青年基金一项，参与多项国家级项目。
报告时间：7月1日10：00-11：00
报告地点：理学院学术报告厅（6教南528）