[1] [1] Loss D,Divincenzo D P. Quantum computation with quantum dots [J].Phys. Rev. A,1998,57: 1.

[2] [2] Clark R G. Universal quantum gates for single Cooper pair box based quantum computing [C].Experimental Implementation of Quantum Computation [M].Rinton Press,2001.111-120.

[3] [3] Wootters W K. Entanglement of formation of an arbitrary state of two qubits [J].Phys. Rev. Lett.,1998,80:2245-2248.

[4] [4] Bennett C H,et al. Concentrating partial entanglement by local operations [J].Phys. Rev. A,1996,53: 4.

[5] [5] Yu T,Eberly J H. Phonon decoherence of quantum entanglement: Robust and fragile states [J].Phys. Rev. B,2002,66: 193306.

[6] [6] Von Neumann J,Wigner E. Phys Z,1929,30: 467-470;Littman M G,et al. Structure of sodium rydberg states in weak to strong electric fields [J].Phys. Rev. Lett.,1976,36: 14.

[7] [7] Sun Y H,Kuang L M. Quantum entanglement and quantum nonlocality for N-photon entagled states [J].Chin.Phys.,2006,15: 4.

[8] [8] Yuan H C,Li H M,Qi K G. Simple experimental scheme of teleporting a two-qubit states via linear optical elements [J].Chin. Phys.,2006,15: 8.

[9] [9] Majer J B,et al. Spectroscopy on two coupled superconducting flux qubits [J].Phys. Rev. Lett.,2005,94:090501.

[10] [10] Peng Z H,et al. Detection of geometric phases in flux qubits with coherent pulses [J].Phys. Rev. B,2006,73:020502.

[11] [11] Kutsuzawa T,et al. Coherent control of a flux qubit by phase-shifted resonant microwave pulses [J].Appl. Phys.Lett.,2005,87: 073501.

[12] [12] Izmalkov A,et al. Evidence for entangled states of two coupled flux qubits [J].Phys. Rev. Lett.,2004,93: 037003.

[13] [13] Cleland A N,Geller M R. et al. Superconducting qubit storage and entanglement with nano-mechanical [J].Phys.Rev. Lett.,2004,93: 070501.

[14] [14] Koiller B,et al. Exchange in silicon-based quantum computer architecture [J].Phys. Rev. Lett.,2002,88: 029703.

[15] [15] P'erola M,R'emy M. Topological phase for entangled two-qubit states [OL].2003,arXiv: quant-ph/0302202.

[16] [16] Unanyan R G,et al. Preparation of entangled states by adiabatic passage [J].Phys. Rev. Lett.,2001,87: 137902.