| 揭秘量子密码、量子纠缠与量子隐形传态 |
| |
| 引用本文： | 施郁.揭秘量子密码、量子纠缠与量子隐形传态[J].自然杂志,2016,38(4):241-247. |
| |
| 作者姓名： | 施郁 |
| |
| 作者单位： | 复旦大学物理学系，上海 200433 |
| |
| 摘 要： | 以光子的偏振态为例，对量子力学、量子态、量子密码、量子纠缠和量子隐形传态作简要通俗而又力求准确的介绍。首先通过与经典物理的对比，引进量子力学的基本思想和量子态的基本涵义；接着介绍量子密码的BB84量子密钥分配方案；然后介绍量子纠缠，强调它不违反相对论。在此基础上，介绍了量子隐形传态，强调了经典通信在这个过程中的必不可少。
|
| 关 键 词： | 量子力学 量子态 量子密码 量子纠缠 量子隐形传态 |
| 收稿时间： | 2016-05-23 |
Demystifying quantum cryptography,quantum entanglement and quantum teleportation |
| |
| SHI Yu.Demystifying quantum cryptography,quantum entanglement and quantum teleportation[J].Chinese Journal of Nature,2016,38(4):241-247. |
| |
| Authors: | SHI Yu |
| |
| Affiliation: | Department of Physics, Fudan University, Shanghai 200433, China |
| |
| Abstract: | Exemplified by the polarized states of photons, we make a concise, accurate and easily comprehensible introduction to the concepts of quantum mechanics, quantum states, quantum cryptography, quantum entanglement and quantum teleportation. First, the fundamental ideas of quantum mechanics and the meaning of quantum states are introduced through the comparison with classical physics. Then the BB84 scheme of quantum key distribution in quantum cryptography is explained. Afterwards, the concept of quantum entanglement is introduced, with the emphasis that it does not violate the theory of relativity. On the basis of this, quantum teleportation is explained, with the necessity of classical communication in the process emphasized. |
| |
| Keywords: | |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《自然杂志》浏览原始摘要信息 |
|
点击此处可从《自然杂志》下载全文 |
|
