References

[1] Braunstein S L, Kimble H J. Teleportation of continuous quantum variables. Phys Rev Lett, 1998, 80: 869-872. Google Scholar https://scholar.google.com/scholar?&q=Braunstein S L, Kimble H J. Teleportation of continuous quantum variables. Phys Rev Lett, 1998, 80: 869-872&

[2] Furusawa A, Sorensen J L, Braunsain S L, et al. Unconditional quantum teleportation. Science, 1998, 282(5389): 706-709. Google Scholar https://scholar.google.com/scholar?&q=Furusawa A, Sorensen J L, Braunsain S L, et al. Unconditional quantum teleportation. Science, 1998, 282(5389): 706-709&

[3] Giedke G. Quantum Information and Continuous vVariable System. Dissertation for Doctoral Degree. Innsbruck: University of Innsbruck, 2001. Google Scholar https://scholar.google.com/scholar?&q=Giedke G. Quantum Information and Continuous vVariable System. Dissertation for Doctoral Degree. Innsbruck: University of Innsbruck, 2001&

[4] Simon R. Peres-Horodecki separability criterion for continuous variable system. Phys Rev Lett, 2000, 84(12): 2726-2729. Google Scholar https://scholar.google.com/scholar?&q=Simon R. Peres-Horodecki separability criterion for continuous variable system. Phys Rev Lett, 2000, 84(12): 2726-2729&

[5] Peres A. Separability criterion for density matrices. Phys Rev Lett, 1996, 77: 1413-1415. Google Scholar https://scholar.google.com/scholar?&q=Peres A. Separability criterion for density matrices. Phys Rev Lett, 1996, 77: 1413-1415&

[6] Vidal G, Werner R F. Computable measure of entanglement. Phys Rev A, 2002, 65(3): 032314. Google Scholar https://scholar.google.com/scholar?&q=Vidal G, Werner R F. Computable measure of entanglement. Phys Rev A, 2002, 65(3): 032314&

[7] Giedke G, Wolf M M, Krüger O, et al. Entanglement of formation for symmetric gaussian states. Phys Rev Lett, 2003, 91(10): 107901. Google Scholar https://scholar.google.com/scholar?&q=Giedke G, Wolf M M, Krüger O, et al. Entanglement of formation for symmetric gaussian states. Phys Rev Lett, 2003, 91(10): 107901&

[8] Rigolin G, Escobar C O. Lower bounds on the entanglement of formation for general gaussian states. Phys Rev A, 2004, 69: 012307. Google Scholar https://scholar.google.com/scholar?&q=Rigolin G, Escobar C O. Lower bounds on the entanglement of formation for general gaussian states. Phys Rev A, 2004, 69: 012307&

[9] Adesso G, Serafini A, Illuminati F. Determination of continuous variale entanglement by purity measurements. Phys Rev Lett, 2004, 92(8): 087901. Google Scholar https://scholar.google.com/scholar?&q=Adesso G, Serafini A, Illuminati F. Determination of continuous variale entanglement by purity measurements. Phys Rev Lett, 2004, 92(8): 087901&

[10] Adesso G, Serafini A, Illuminati F. Quantification and scaling of multipartite entanglement in continuous variable systems. Phys Rev Lett, 2004,93: 220504. Google Scholar https://scholar.google.com/scholar?&q=Adesso G, Serafini A, Illuminati F. Quantification and scaling of multipartite entanglement in continuous variable systems. Phys Rev Lett, 2004,93: 220504&

[11] Serafini A, Illuminati F, Paris M G A, et al. Entanglement and purity of two-mode gaussian states in noisy channels. Phys Rev A, 2004, 69:022318. Google Scholar https://scholar.google.com/scholar?&q=Serafini A, Illuminati F, Paris M G A, et al. Entanglement and purity of two-mode gaussian states in noisy channels. Phys Rev A, 2004, 69:022318&

[12] Duan L M, Giedke G, Cirac J I, et al. Inseparability criterion for cintinuous variab systems. Phys Rev Lett, 2000, 84(12): 2722-2725. Google Scholar https://scholar.google.com/scholar?&q=Duan L M, Giedke G, Cirac J I, et al. Inseparability criterion for cintinuous variab systems. Phys Rev Lett, 2000, 84(12): 2722-2725&

[13] Eisert J, Simon C, PlenioMB. On the quantification of entanglement in infinite-dimensional quantum systems. J Phys A, 2002, 35(17): 3911-3923. Google Scholar https://scholar.google.com/scholar?&q=Eisert J, Simon C, PlenioMB. On the quantification of entanglement in infinite-dimensional quantum systems. J Phys A, 2002, 35(17): 3911-3923&