A Simple Method on Generating any Bi-Photon Superposition State with Linear Optics

被引：0

作者：

张婷婷 ^{[1
,2
]}

魏杰 ^{[1
,2
]}

王琴 ^{[1
,2
,3
]}

机构：

[1] Institute of Signal Processing and Transmission,Nanjing University of Posts and Telecommunications

[2] Key Laboratory of Broadband Wireless Communication and Sensor Network Technology,Nanjing University of Posts and Telecommunications,Ministry of Education

[3] Key Laboratory of Quantum Information,CAS,University Science and Technology of China

来源：

CommunicationsinTheoreticalPhysics | 2017年 / 67卷 / 04期

关键词：

bi-photon superposition state; Wigner function; state fidelity;

D O I：

暂无

中图分类号：

O431.2 [量子光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present a simple method on the generation of any bi-photon superposition state using only linear optics.In this scheme, the input states, a two-mode squeezed state and a bi-photon state, meet on a beam-splitter and the output states are post-selected with two threshold single-photon detectors. We carry out corresponding numerical simulations by accounting for practical experimental conditions, calculating both the Wigner function and the state fidelity of those generated bi-photon superposition states. Our simulation results demonstrate that not only distinct nonclassical characteristics but also very high state fidelities can be achieved even under imperfect experimental conditions.

引用

页码：391 / 395

页数：5