Quantum cloning

被引：500
作者：
Scarani, V
Iblisdir, S
Gisin, N
Acín, A
机构：
[1] Univ Geneva, Appl Phys Grp, CH-1211 Geneva, Switzerland
[2] ICFO, Inst Ciencies Foton, E-08034 Barcelona, Spain
来源：
REVIEWS OF MODERN PHYSICS | 2005年 / 77卷 / 04期
关键词：
D O I：
10.1103/RevModPhys.77.1225
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The impossibility of perfectly copying (or cloning) an unknown quantum state is one of the basic rules governing the physics of quantum systems. The processes that perform the optimal approximate cloning have been found in many cases. These "quantum cloning machines" are important tools for studying a wide variety of tasks, e.g., state estimation and eavesdropping on quantum cryptography. This paper provides a comprehensive review of quantum cloning machines both for discrete-dimensional and for continuous-variable quantum systems. In addition, it presents the role of cloning in quantum cryptography, the link between optimal cloning and light amplification via stimulated emission, and the experimental demonstrations of optimal quantum cloning.
引用
收藏
页码：1225 / 1256
页数：32
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