利用原子相干效应实现光量子调制

项目名称： 利用原子相干效应实现光量子调制

项目编号： No.61275212

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 无线电电子学、电信技术

项目作者： 董雅宾

作者单位： 山西大学

项目金额： 88万元

中文摘要： 量子信息学作为一门新兴的学科，显示了极为广阔的科学和技术应用前景。量子信息是利用量子力学的基本原理来实现信息的产生、传递、处理和存储。它在保密通信和高速并行计算等方面有着经典信息无可比拟的优越性。最近研究表明，利用原子相干效应可以实现量子开关以及量子振幅和相位调制。该项目拟在碱金属原子气室中对多种不同能级结构的原子系综的量子相干效应进行研究，从理论和实验上探讨实现量子开关以及量子振幅和位相调制的途径和机理，并关注优化实验效果的一些关键技术，包括耦合光及信号光的功率、偏振，原子气室的密度、温度，原子基态相干时间，驻波长的空间周期，耦合光和信号光的传播方向和夹角等因素的影响。

中文关键词： 电磁感应光栅；全光开关；量子振幅调制；量子相位调制；热原子

英文摘要： Quantum information science as a new subject, shows a very broad prospects for science and technology applications. Quantum information is to use the basic principles of quantum mechanics to information generation, transmission, processing and storage. It has incomparable superiority of classical information in secure communications and high-speed parallel computing. Recent studies have shown that the use of atomic coherence effects can be achieved Quantum switching and quantum amplitude and phase modulation. The project intends to study a variety of different energy level structure of atomic ensemble quantum coherence effects in the alkali metal atoms cell. Exploring ways and mechanism of Quantum switching and quantum amplitude and phase modulation from the theoretical and experimental, and focusing on the optimization experiments the effect of a number of key technologies, including the power and polarization of coupling light and signal light, the density and temperature of the atomic cell, atom ground state coherence time, spatial period of standing wave, the propagation direction and the angle between coupled light and signal light, etc.

英文关键词： Electromagnetically induced grating；all-optical switching；quantum amplitude modulation；quantum phase modulation；thermal atom