摘要
介绍了一门新的学科分支——量子信息光学．它是量子光学与信息科学相结合的产物光场的量子效应在实现大容量的信息传输，超高精度的信息检测以及不可破译、不可窃听的量子密码术方面有着极其重要的应用前景，在光子学的发展中将发挥独特的作用．该文阐述了量子信息光学中若干物理问题和研究方向，包括超低噪声光源、量子信息复制、量子态工程、量子非破坏性测量和量子密码术．
We introduce quantum information optics as a new branch of science, which is the result of combining quantum optics and information science. The quantum effects of the light field. have very important applications for information transmission with super--large capacity, information detection with super-high precision and unbreakable secure quantum cryptography, and will play a unique role in photonics. The several fundamental physical problems and main research fields in quan- tum optics are expounded, including light sources with super-low noise, the copying of quantum infor- mation, quantum state engineering, quantum non-demolition measurement and quantum crypto- graphy.
出处
《物理》
CAS
北大核心
1996年第6期336-341,共6页
Physics
基金
国家自然科学基金资助项目.
关键词
压缩态
量子态工程
QND测量
量子密码术
squeezed state, quantum state engineering, QND measurement, quantum crypto- graphy
