Mach-Zehnder interferometer with squeezed and EPR entangled optical fields

doi:10.1088/1674-1056/25/2/020304

中国物理B ›› 2016, Vol. 25 ›› Issue (2): 20304-020304.doi: 10.1088/1674-1056/25/2/020304

Mach-Zehnder interferometer with squeezed and EPR entangled optical fields

Xu-Dong Xu(于旭东), Wei Li(李卫), Shi-Yao Zhu(朱诗尧), Jing Zhang(张靖)

1. The State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Opto-Electronics, Shanxi University, Taiyuan 030006, China;
2. Beijing Computational Science Research Center, Beijing 100084, China;
3. Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan 030006, China

收稿日期:2015-06-28 修回日期:2015-09-07 出版日期:2016-02-05 发布日期:2016-02-05
通讯作者: Jing Zhang E-mail:jzhang74@aliyun.com
基金资助:
Project supported by the National Basic Research Program of China (Grant No. 2011CB921601), the National Natural Science Foundation of China (Grant Nos. 11234008, 11361161002, and 61571276), the Doctoral Program Foundation of the Ministry of Education China (Grant No. 20111401130001), and the Natural Science Foundation of Shanxi Province, China (Grant No. 2015011007).

Mach-Zehnder interferometer with squeezed and EPR entangled optical fields

Xu-Dong Xu(于旭东)^1,3, Wei Li(李卫)^1,3, Shi-Yao Zhu(朱诗尧)², Jing Zhang(张靖)¹

1. The State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Opto-Electronics, Shanxi University, Taiyuan 030006, China;
2. Beijing Computational Science Research Center, Beijing 100084, China;
3. Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan 030006, China

Received:2015-06-28 Revised:2015-09-07 Online:2016-02-05 Published:2016-02-05
Contact: Jing Zhang E-mail:jzhang74@aliyun.com
Supported by:
Project supported by the National Basic Research Program of China (Grant No. 2011CB921601), the National Natural Science Foundation of China (Grant Nos. 11234008, 11361161002, and 61571276), the Doctoral Program Foundation of the Ministry of Education China (Grant No. 20111401130001), and the Natural Science Foundation of Shanxi Province, China (Grant No. 2015011007).

摘要/Abstract

摘要： We study a scheme for Mach-Zehnder (MZ) interferometer as a quantum linear device by injecting two-mode squeezed input states into two ports of interferometer. Two-mode squeezed states can be changed into two types of inputs for MZ interferometer: two squeezed states and Einstein-Podolsky-Rosen (EPR) entangled states. The interference patterns of the MZ interferometer vary periodically as the relative phase of the two arms of the interferometer is scanned, and are measured by the balanced homodyne detection system. Our experiments show that there are different interference patterns and periodicity of the output quantum states for two cases which depend on the relative phase of input optical fields. Since MZ interferometer can be used to realize some quantum operations, this work will have the important applications in quantum information and metrology.

关键词: quantum information, interferometers

Abstract: We study a scheme for Mach-Zehnder (MZ) interferometer as a quantum linear device by injecting two-mode squeezed input states into two ports of interferometer. Two-mode squeezed states can be changed into two types of inputs for MZ interferometer: two squeezed states and Einstein-Podolsky-Rosen (EPR) entangled states. The interference patterns of the MZ interferometer vary periodically as the relative phase of the two arms of the interferometer is scanned, and are measured by the balanced homodyne detection system. Our experiments show that there are different interference patterns and periodicity of the output quantum states for two cases which depend on the relative phase of input optical fields. Since MZ interferometer can be used to realize some quantum operations, this work will have the important applications in quantum information and metrology.

Key words: quantum information, interferometers

中图分类号: (Quantum information)

03.67.-a

07.60.Ly (Interferometers)

于旭东, 李卫, 朱诗尧, 张靖. Mach-Zehnder interferometer with squeezed and EPR entangled optical fields[J]. 中国物理B, 2016, 25(2): 20304-020304.

Xu-Dong Xu(于旭东), Wei Li(李卫), Shi-Yao Zhu(朱诗尧), Jing Zhang(张靖). Mach-Zehnder interferometer with squeezed and EPR entangled optical fields[J]. Chin. Phys. B, 2016, 25(2): 20304-020304.

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Mach-Zehnder interferometer with squeezed and EPR entangled optical fields

Mach-Zehnder interferometer with squeezed and EPR entangled optical fields

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