物理学报
物理學報
물이학보
2013年
10期
27-31
,共5页
Bell态测量%Greenberger-Horne-Zeilinger态测量%弱非线性%量子非破坏性测量
Bell態測量%Greenberger-Horne-Zeilinger態測量%弱非線性%量子非破壞性測量
Bell태측량%Greenberger-Horne-Zeilinger태측량%약비선성%양자비파배성측량
Bell-state detection%Greenberger-Horne-Zeilinger-state detection%weak nonlinearity%quantum nonde-molition detection
基于弱非线性及线性光学元件提出非破坏性测量两光子Bell态及三光子Greenberger-Horne-Zeilinger (GHZ)态方案.方案中,首先应用光束分束器及交叉克尔非线性介质对两光子Bell态进行对称性分析,进而结合控制非门提出三光子分析方案实现对八个三光子GHZ态完全且非破坏性区分.
基于弱非線性及線性光學元件提齣非破壞性測量兩光子Bell態及三光子Greenberger-Horne-Zeilinger (GHZ)態方案.方案中,首先應用光束分束器及交扠剋爾非線性介質對兩光子Bell態進行對稱性分析,進而結閤控製非門提齣三光子分析方案實現對八箇三光子GHZ態完全且非破壞性區分.
기우약비선성급선성광학원건제출비파배성측량량광자Bell태급삼광자Greenberger-Horne-Zeilinger (GHZ)태방안.방안중,수선응용광속분속기급교차극이비선성개질대량광자Bell태진행대칭성분석,진이결합공제비문제출삼광자분석방안실현대팔개삼광자GHZ태완전차비파배성구분.
@@@@The scheme for quantum nondemolition measurement of two-photon Bell-state and three-photon Greenberger-Horne-Zeilinger (GHZ)-state is proposed based on weak nonlinearities and linear-optics elements. We first describe a scheme of the symmetry analyzer for two-photon Bell-state by using beam splitters and cross-Kerr nonlinear medium. According to this symmetry analyzer for two-photon Bell-state and the controlled-NOT gates we construct a three-photon state analyzer which can completely and nondestructively discriminate eight three-photon GHZ states.
