期刊论文

Wang, Xin-Wen

英文

INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS

0020-7748

2012

51

6

1978-1988

10.1007/s10773-012-1076-z

National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [11004050]; Chinese Ministry of EducationMinistry of Education, China [211119]; Hunan Provincial Education Department of China [09A013, 10B013]; Science and Technology Research Foundation of Hunan Province of China [2010FJ4120]; Hengyang Normal University of China [2010YCJH01]; Science Foundation of Hengyang Normal University of China [10B69]

本校为第一且通讯机构

Entanglement swapping for four-qubit cluster-class states is studied. It is shown that a four-qubit cluster state (maximally entangled) can be obtained with a certain probability from two four-qubit cluster-class states by entanglement swapping. The probability is related to the smallest superposition coefficient of the cluster-class states (when all the moduli of amplitudes are equivalent, they are the usual cluster states and the probability hits to one). Two examples for the applications of the entanglement swapping are also presented. One i...