{"title":"Enhancement of quantum entanglement between twin beams via a four-wave mixing process with double feedback","authors":"Pintian Lv, Junxiang Zhang, Ligang Wang, Jingping Xu, Zhenghong Li, Xihua Yang","doi":"10.35848/1882-0786/ad4e02","DOIUrl":null,"url":null,"abstract":"\n Two port feedback has been theoretically studied and proved to be effective in enhancing the degree of entanglement of the output beams for an optical four-wave mixing process, but the loss effects and phase delays need to be further concerned. Here, we use a model that is closer to practical implementation. By reasonably tuning the coefficients, we find that higher degree of entanglement and higher power of the output beams can be obtained, and the requirement for phase locking accuracy could be looser, which means this model is more promising for practical applications in quantum computation and quantum communication.","PeriodicalId":2,"journal":{"name":"ACS Applied Bio Materials","volume":"62 8","pages":""},"PeriodicalIF":4.7000,"publicationDate":"2024-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"ACS Applied Bio Materials","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.35848/1882-0786/ad4e02","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, BIOMATERIALS","Score":null,"Total":0}
引用次数: 0
Abstract
Two port feedback has been theoretically studied and proved to be effective in enhancing the degree of entanglement of the output beams for an optical four-wave mixing process, but the loss effects and phase delays need to be further concerned. Here, we use a model that is closer to practical implementation. By reasonably tuning the coefficients, we find that higher degree of entanglement and higher power of the output beams can be obtained, and the requirement for phase locking accuracy could be looser, which means this model is more promising for practical applications in quantum computation and quantum communication.
期刊介绍：
ACS Applied Bio Materials is an interdisciplinary journal publishing original research covering all aspects of biomaterials and biointerfaces including and beyond the traditional biosensing, biomedical and therapeutic applications.
The journal is devoted to reports of new and original experimental and theoretical research of an applied nature that integrates knowledge in the areas of materials, engineering, physics, bioscience, and chemistry into important bio applications. The journal is specifically interested in work that addresses the relationship between structure and function and assesses the stability and degradation of materials under relevant environmental and biological conditions.
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