On-chip coherent conversion of photonic quantum entanglement between different degrees of freedom

被引：125

作者：

Feng, Lan-Tian ^{[1
,2
]}

Zhang, Ming ^{[3
]}

Zhou, Zhi-Yuan ^{[1
,2
]}

Li, Ming ^{[1
,2
]}

Xiong, Xiao ^{[1
,2
]}

Yu, Le ^{[1
,2
]}

Shi, Bao-Sen ^{[1
,2
]}

Guo, Guo-Ping ^{[1
,2
]}

Dai, Dao-Xin ^{[3
]}

Ren, Xi-Feng ^{[1
,2
]}

Guo, Guang-Can ^{[1
,2
]}

机构：

[1] Univ Sci & Technol China, Key Lab Quantum Informat, CAS, Hefei 230026, Peoples R China

[2] Univ Sci & Technol China, Synerget Innovat Ctr Quantum Informat & Quantum P, Hefei 230026, Peoples R China

[3] Zhejiang Univ, Zhejiang Prov Key Lab Sensing Technol, Ctr Opt & Electromagnet Res, State Key Lab Modern Opt Instrumentat, Zijingang Campus, Hangzhou 310058, Zhejiang, Peoples R China

来源：

NATURE COMMUNICATIONS | 2016年 / 7卷

关键词：

COMMUNICATION; TELEPORTATION;

D O I：

10.1038/ncomms11985

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

In the quantum world, a single particle can have various degrees of freedom to encode quantum information. Controlling multiple degrees of freedom simultaneously is necessary to describe a particle fully and, therefore, to use it more efficiently. Here we introduce the transverse waveguide-mode degree of freedom to quantum photonic integrated circuits, and demonstrate the coherent conversion of a photonic quantum state between path, polarization and transverse waveguide-mode degrees of freedom on a single chip. The preservation of quantum coherence in these conversion processes is proven by single-photon and two-photon quantum interference using a fibre beam splitter or on-chip beam splitters. These results provide us with the ability to control and convert multiple degrees of freedom of photons for quantum photonic integrated circuit-based quantum information process.

引用

页数：7

共 39 条

[1] Beating the channel capacity limit for linear photonic superdense coding [J].