{"title":"量子纠缠和计量学","authors":"C. Caves","doi":"10.1109/QELS.2007.4431814","DOIUrl":null,"url":null,"abstract":"For linear couplings of N systems to a parameter, quantum entanglement can improve the precision of parameter estimation from the 1/¿N shot-noise limit to the 1/N Heisenberg limit. Intrinsic ¿-body couplings improve this scaling further to 1/N¿.","PeriodicalId":152616,"journal":{"name":"2007 Quantum Electronics and Laser Science Conference","volume":"141 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2007-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Quantum entanglement and metrology\",\"authors\":\"C. Caves\",\"doi\":\"10.1109/QELS.2007.4431814\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"For linear couplings of N systems to a parameter, quantum entanglement can improve the precision of parameter estimation from the 1/¿N shot-noise limit to the 1/N Heisenberg limit. Intrinsic ¿-body couplings improve this scaling further to 1/N¿.\",\"PeriodicalId\":152616,\"journal\":{\"name\":\"2007 Quantum Electronics and Laser Science Conference\",\"volume\":\"141 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2007-05-06\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2007 Quantum Electronics and Laser Science Conference\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/QELS.2007.4431814\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2007 Quantum Electronics and Laser Science Conference","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/QELS.2007.4431814","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
For linear couplings of N systems to a parameter, quantum entanglement can improve the precision of parameter estimation from the 1/¿N shot-noise limit to the 1/N Heisenberg limit. Intrinsic ¿-body couplings improve this scaling further to 1/N¿.
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