[6] M. A. Nielsen and I. L. Chuang, Quantum Computation and Quantum Information (Cam- bridge University Press, Cambridge, England, 2000). 

[7] Y. Shimoni, D. Shapira and O. Biham, Characterization of pure quantum states of multiple qubits , Phys. Rev. A69 (2004) 062303 [quant-ph/0309062]. 

[8] B. P. Lanyon, M. Barbieri, M. P. Almeida and A. G. White, Experimental quantum computing without entanglement , Phys. Rev. Lett. 101 (2008) 200501 [arXiv:0807.0668 (quant-ph)]. 

[9] E. Biham, G. Brassard, D. Kenigsberg and T. Mor, Quantum computing without entanglement , Theor. Comp. Sci. 320 (2004) 15 [quant-ph/0306182]. 

[10] C. H. Bennett, D. P. DiVincenzo, J. A. Smolin and W. K. Wootters, Mixed-state entanglement and quantum error correction , Phys. Rev. A54 (1996) 3824 [quant-ph/9604024]. 

[11] V. Vedral, M. B. Plenio, M. A. Rippin and P. L. Knight, Quantifying Entanglement , Phys. Rev. Lett. 78 (1997) 2275 [quant-ph/9702027]. 

[12] V. Vedral and M. B. Plenio, Entanglement measures and purification procedures, Phys. Rev. A57 (1998) 1619 [quant-ph/9707035]. 

[13] E. M. Rains, Rigorous treatment of distillable entanglement , Phys. Rev. A60 (1999) 173 [quant-ph/9809078]. 

[14] E. M. Rains, Bound on distillable entanglement , Phys. Rev. A60 (1999) 179 [quant-ph/9809082]. 

[15] J. A. Smolin, Four-party unlockable bound entangled state , Phys. Rev. A63 (2001) 032306 [quant-ph/0001001]. 

[16] S. Ghosh, G. Kar, A. Roy, A. Sen and U. Sen, Distinguishability of Bell States , Phys. Rev. Lett. 87 (2001) 277902 [quant-ph/0106148]. 

[17] Y. X. Chen, J. S. Jin and D. Yang, Distillation of multiple copies of Bell states , Phys. Rev. A67 (2003) 014302 [quant-ph/0204004]. 

[18] D. Yang and Y. X. Chen, Mixture of multiple copies of maximally entangled states is quasipure , Phys. Rev. A69 (2004) 024302 [quant-ph/0304194]. 

[19] R. Horodecki, P. Horodecki, M. Horodecki, and K. Horodecki, Quantum Entanglement , Rev. Mod. Phys. 81 (2009) 865 [quant-ph/0702225] and references therein. 

[20] M. Hayashi, D. Markham, M. Murao, M. Owari and S. Virmani, Bounds on Multipartite Entangled Orthogonal State Discrimination Using Local Operations and Classical Communi- cation , Phys. Rev. Lett. 96 (2006) 040501 [quant-ph/0506170]. 

