Author:
Jia Fang ,Xu Xue-Xiang ,Liu Cun-Jin ,Huang Jie-Hui ,Hu Li-Yun ,Fan Hong-Yi , ,
Abstract
Beam splitter (BS) is a basic linear element in quantum optics, which plays an important role in preparation of entangled states and quantum measurement. On the basis of the transformation relation between operators at input ports and output ports, we derive the natural representations in different representations. Using the natural expression rather than SU(2) Lie algebra relation, as well as the technique of integration within ordered product (IWOP) of operator, we can conveniently and concisely derive the normally ordering form and exponential expression of BS operator. Many forms of decompositions for BS operator can also be directly obtained by its natural representation and the orthogonality of coordinate states. Furthermore, the entangled state representation and corresponding Schmidt decomposition can be conveniently obtained.
Publisher
Acta Physica Sinica, Chinese Physical Society and Institute of Physics, Chinese Academy of Sciences
Subject
General Physics and Astronomy
Reference19 articles.
1. Louisell W H 1990 Quantum Statistical Properties of Radiation (New York: Wiley)
2. Dirac P A M 1958 The Prnciple of Quantum Mechanics (4th Ed.) (Oxford: Oxford University Press)
3. Fan H Y, Ye X 1995 Phys. Rev. A 51 3343
4. Fan H Y 2002 Phys. Lett. A 294 253
5. Fan H Y, Liang X T 2001 Phys. Lett. A 291 61
Cited by
14 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献