中国物理B ›› 2011, Vol. 20 ›› Issue (12): 120310-120310.doi: 10.1088/1674-1056/20/12/120310
Yeon Kyu-Hwang1, Yu Seong-Cho1, 张寿2, 张英俏3
Zhang Ying-Qiao(张英俏)a)b)†, Zhang Shou(张寿)a), Yeon Kyu-Hwangb), and Yu Seong-Chob)
摘要: Based on the coupling of two distant three-level atoms in two separate optical cavities connected with two optical fibres, schemes on the generation of several two-qubit logic gates are discussed under the conditions of Δ = δ - 2ν cos πk/2 >> g/2 and ν ~ g. Discussion and analysis of the fidelity, gate time and experimental setups show that our schemes are feasible with current optical cavity, atomic trap and optical fibre techniques. Moreover, the atom-cavity- fibre coupling can be used to generate an N-qubit nonlocal entanglement and transfer quantum information among N distant atoms by arranging N atom-cavity assemblages in a line and connecting each two adjacent cavities with two optical fibres.
中图分类号: (Quantum computation architectures and implementations)