Generation and dynamic manipulation of frequency degenerate polarization entangled Bell states by a silicon quantum photonic circuit

Chip Pub Date : 2022-03-01 DOI:10.1016/j.chip.2021.100001

Dong-Ning Liu , Jing-Yuan Zheng , Ling-Jie Yu , Xue Feng , Fang Liu , Kai-Yu Cui , Yi-Dong Huang , Wei Zhang

{"title":"Generation and dynamic manipulation of frequency degenerate polarization entangled Bell states by a silicon quantum photonic circuit","authors":"Dong-Ning Liu , Jing-Yuan Zheng , Ling-Jie Yu , Xue Feng , Fang Liu , Kai-Yu Cui , Yi-Dong Huang , Wei Zhang","doi":"10.1016/j.chip.2021.100001","DOIUrl":null,"url":null,"abstract":"<div><p>A silicon quantum photonic circuit was proposed and realized for the generation and the dynamic manipulation of telecom-band frequency-degenerate polarization entangled Bell states. Frequency degenerate biphoton states were generated in four silicon waveguides by spontaneous four wave mixing. They were transformed to polarization entangled Bell states through on-chip quantum interference and quantum superposition, and then coupled to optical fibers. The property of polarization entanglement in generated photon pairs was demonstrated by two-photon interference under two non-orthogonal polarization bases. The output state could be dynamically switched between two Bell states, which was demonstrated by the simplified Bell state measurement. The experiment results indicated that the manipulation speed supported a modulation rate of several tens kHz, showing its potential on applications of quantum communication and quantum information processing requiring Bell state encoding and dynamic control.</p></div>","PeriodicalId":100244,"journal":{"name":"Chip","volume":"1 1","pages":"Article 100001"},"PeriodicalIF":0.0000,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2709472321000010/pdfft?md5=f1332caedc9361676124851ccb62e7e1&pid=1-s2.0-S2709472321000010-main.pdf","citationCount":"4","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Chip","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2709472321000010","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 4

Abstract

A silicon quantum photonic circuit was proposed and realized for the generation and the dynamic manipulation of telecom-band frequency-degenerate polarization entangled Bell states. Frequency degenerate biphoton states were generated in four silicon waveguides by spontaneous four wave mixing. They were transformed to polarization entangled Bell states through on-chip quantum interference and quantum superposition, and then coupled to optical fibers. The property of polarization entanglement in generated photon pairs was demonstrated by two-photon interference under two non-orthogonal polarization bases. The output state could be dynamically switched between two Bell states, which was demonstrated by the simplified Bell state measurement. The experiment results indicated that the manipulation speed supported a modulation rate of several tens kHz, showing its potential on applications of quantum communication and quantum information processing requiring Bell state encoding and dynamic control.

查看原文本刊更多论文

硅量子光子电路频率简并极化纠缠贝尔态的产生和动态操纵

提出并实现了一种用于电信频段频率简并极化纠缠贝尔态的产生和动态处理的硅量子光子电路。通过自发四波混频，在硅波导中产生了频率简并双光子态。通过片上量子干涉和量子叠加将其转化为偏振纠缠贝尔态，然后耦合到光纤中。通过在两个非正交偏振基下的双光子干涉，证明了所产生光子对的偏振纠缠特性。输出状态可以在两种贝尔状态之间动态切换，通过简化的贝尔状态测量证明了这一点。实验结果表明，该操作速度支持几十kHz的调制速率，在需要贝尔状态编码和动态控制的量子通信和量子信息处理中具有很大的应用潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Chip

CiteScore

2.80

自引率

0.00%

发文量