Shu‐Qian Shen, Xin‐Qi Gao, Rui‐Qi Zhang, Ming Li, Shao‐Ming Fei
{"title":"Implementation of Entanglement Witnesses with Quantum Circuits","authors":"Shu‐Qian Shen, Xin‐Qi Gao, Rui‐Qi Zhang, Ming Li, Shao‐Ming Fei","doi":"10.1002/qute.202400272","DOIUrl":null,"url":null,"abstract":"Entanglement witnesses are economical tools for the experimental detection of quantum entanglement. Quantum algorithms for entanglement detection have recently attracted considerable attention. Based on block encoding techniques and state preparation methods, the implementation of several types of entanglement witnesses using quantum circuits without quantum state tomography is proposed. Further, explicit quantum circuits for the block encoding of some special matrices are presented.","PeriodicalId":501028,"journal":{"name":"Advanced Quantum Technologies","volume":"77 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Advanced Quantum Technologies","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1002/qute.202400272","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
Entanglement witnesses are economical tools for the experimental detection of quantum entanglement. Quantum algorithms for entanglement detection have recently attracted considerable attention. Based on block encoding techniques and state preparation methods, the implementation of several types of entanglement witnesses using quantum circuits without quantum state tomography is proposed. Further, explicit quantum circuits for the block encoding of some special matrices are presented.
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