Title :
Experimental generation of multipartite entanglement for continuous variables and its applications in quantum communication
Author :
Peng, Kunchi ; Jing, Jietai ; Zhang, Jing ; Pan, Qing ; Xie, Changde
Author_Institution :
Inst. of Opto-Electron.
Abstract :
An experimental system for entanglement swapping of continuous variables was designed. Two nondegenerate optical parametric amplifiers operating at deamplification were used for two independent EPR sources. Through a jointly direct measurement of Bell-state the entanglement swapping can be implemented. The level of entanglement produced from entanglement swapping depends not only on the squeezing parameter of light field but also on the large excess noise in the unsqueezed quadrature component
Keywords :
EPR paradox; optical parametric amplifiers; optical squeezing; quantum communication; quantum entanglement; Bell-state; EPR sources; continuous variables entanglement swapping; multipartite entanglement; nondegenerate optical parametric amplifiers; quantum communication; squeezing parameter; unsqueezed quadrature component;
Conference_Titel :
Quantum Electronics Conference, 2004. (IQEC). International
Conference_Location :
San Francisco, CA
Print_ISBN :
1-55752-778-4
