supported by the National Natural Science Foundation of China (Grant Nos. 60878059,11004033 and 10905016);the Natural Science Foundation of Fujian Province (Grant No. 2010J01002);the Fundof Hebei Normal University,the RGC Grant of Hong Kong (Grant Nos.HKU7044/08P and HKU7058/11P);the State Key Program for Basic Research of China (Grant No. 2011CB922104);the National Fundamental Research Program of China (Grant No. 2011CBA00203)
Entanglement charge is an operational measure to quantify nonlocalities in ensembles consisting of bipartite quantum states.Here we generalize this nonlocality measure to single bipartite quantum states.As an example,...
Project supported by the National Natural Science Foundation of China (Grant Nos. 60878059, 10947147, 10574022, and 10704010);the Natural Science Foundation of Fujian Province of China (Grant Nos. 2007J0002 and 2010J01002)
Schemes are presented for realizing quantum controlled phase gate and preparing an N-qubit W-like state, which are based on the large-detuned interaction among three-state atoms, dual-mode cavity and a classical pulse...
Project supported by the National Natural Science Foundation of China (Grant No. 60878059);the Science Foundation of the Educational Committee of Fujian Province of China (Grant No. JA09041);Fujian Normal University (Grant Nos. 2008100220and BKL2009-010)
This paper considers a scheme for the preparation of two-qutrit entangled states via adiabatic passage in iontrapped system. In the proposal, the two three-level V-type ions are initially cooled to the ground states a...
supported by the National Natural Science Foundation of China (Grant Nos.60878059,10947147,60677044,and 10574022);the Natural Science Foundation of Fujian Province of China (Grant No.2007J0002)
This paper proposes scalable schemes to generate the Greenberger-Horne-Zeilinger (GHZ) state and the cluster state with atomic ensembles via the dipole blockade mechanism on an atom chip, where the qubit is not carr...
Project supported by the National Natural Science Foundation of China (Grant Nos. 60878059,60677044,and 10574022);the Natural Science Foundation of Fujian Province of China (Grant No. 2007J0002)
We propose schemes to generate an n-coherent-pulse GHZ state and a cluster state via the interaction between n coherent pulses and a two-sided cavity. In these schemes, a strong coupling condition is not needed, which...