利用双模压缩真空态作为纠缠通道传送相干态的保真度已有结论,研究了明亮双模压缩态作为纠缠通道时连续变量的量子隐形传态,适当选取有关参数,可较大地提高量子隐形传态的保真度,并在特殊情况下实现相干态的保真度为1的不失真量子隐形传态.
参考文献
| [1] | Bennett C H, Brassard G. et al. Teleportating an unknown quantum state via dual classical and EinsteinPodolsky-Rosen channel [J]. Phys. Rev. Lett., 1993, 64(11): 1895-1898. |
| [2] | Vaidman L. Teleportation of quantum states [J]. Phys. Rev. A, 1994, 49: 1473-1475. |
| [3] | Braunstain S L. et al. Teleportation of continuous variable [J]. Phys. Rev. Lett., 1998, 80: 869-872. |
| [4] | Van Loock P, Braunstaln S L. Unconditional teleportation of continuous-variable entanglement [J]. Phys. Rev.A, 2000, 61: 010302(R) |
| [5] | Ralph T C, Lam P K. Teleportation with bright squeezed light [J]. Phys. Rev. Lett., 1998, 81:5668 |
| [6] | Milburn G J, Braunstain S L. Quantum teleportation with squeezed vacuum state [J]. Phys. Rev. A, 1999, 60:937-942. |
| [7] | Parker S, Bose S, Plenio M B. Entanglement quantification and purification in continuous variable systems [J].Phys. Rev. A, 2000, 61:032305-1 |
| [8] | Duan L M. et al. Entanglement purification of Gaussian continuous variable quantum state [J]. Phys. Rev. Lett.,2000, 84(17): 4002-4005. |
| [9] | Duan L M. et al. Physical implementation for entanglement purification of Gaussian continuous-variable quantum state [J]. Phys. Rev. A, 2000, 62: 032304. |
| [10] | Oputrny T, Kurizki G, Welsch D G. Improvement on teleportation of continuous variables by photo subtraction via condition measurement [J]. Phys. Rev. A, 2000, 61: 032302-1. |
| [11] | Lee J, et al. Transfer of nonclassical features in quantum teleportation via a mixed quantum channel [J]. Phys.Rev. A, 2000, 62:032305 -3. |
| [12] | Chizhov A V, Knoll L, Welsh D J. Continuous-variables quantum teleportation through lossy channels [J]. Phys.Rev. A, 2002, 65: 022310-2. |
| [13] | Van Loock, et al. Multipartite entanglement for continuous variables: a quantum teleportation network [J]. Phys.Rev. Lett., 2000, 84(15): 3484. |
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