利用位置和动量、相位和粒子数这两对正则共轭可观察量,研究了两种不同类型的量子隐形传态方案,把连续变量和分离变量的量子隐形传态统一到正则量子隐形传态的框架中.正则共轭可观察量在量子隐形传态中扮演了三重角色:首先,两个对易的正则可观察量,如相位差和粒子数和的共同本征态提供了一个两系统间的量子通道;其次,对另外两系统的一对正则可观察量进行了Bell基测量;最后,由单个系统的正则共轭观察量构成了两个局域的么正变换以恢复这个未知的量子态.
参考文献
| [1] | Bennett C H,Brassard G,Crepeau C,et al.Teleporting an unknown quantum state via dual classical and Einstein-Podolsky-Rosen channels[J].Phys.Rev.Left.,1993,70(13):1895-1899. |
| [2] | Bouwmeester D,Pan J W,Mattle K,et al.Experimental quantum teleportation[J].Nature,1997,390:575-579. |
| [3] | Bennett C H,Brassaed G,Popescu S,et al.Purification of noisy entanglement and faithful teleportation via nosiy channels[J].Phys.Rev.Left.,1996,76 (5):722-725. |
| [4] | Lu H,Chen L B,Huang C Q,et al.Teleportation of an entangled state via the W states[J].Chinese Journal of Quantum Electronics(量子电子学报),2004,21(6):730-733 (in Chinese). |
| [5] | Stenholm S,Bardroff P J.Teleportation of N-dimensional states[J].Phys.Rev.A,1998,58(6):4373-4376. |
| [6] | Ji Xin,Zhang Shou.Teleportation of three-particle entangled state by two EPR pairs[J].Chinese Journal of Quantum Electronics(量子电子学报),2006,23(6):816-819 (in Chinese). |
| [7] | Maierle C S,Lidar D A,Harris R A.How to teleport superpositions chiral amplitudes[J].Phys.Rev.Left.,1998,81(26):5928-5931. |
| [8] | Zubairy M S.Quantum teleportation of a field state[J].Phys.Rev.A,1998,58(6):4368-4378. |
| [9] | Vaidman L.Teleportation of quantum states[J].Phys.Rev.A,1994,49(2):1473-1476. |
| [10] | Brannstein S L,Kimble H J.Teleportation of continuous quantum variables[J].Phys.Rev.Lett.,1998,80(4):869-872. |
| [11] | Furusawa A,Sorensen J L,Braunstein S L,et al.Unconditional quantum teleportation[J].Science,1998,282:706-709. |
| [12] | Milburn G J,Brannstein S L.Quantum teleportation with squeezed vacuum states[J].Phys.Rev.A,1999,60(2):937-942. |
| [13] | Yu S X.Quantized phase difference[J].Phys.Rev.Lett.,1997,79(5):780-783. |
| [14] | Yu S X,Zhang Y D.A constructive index theorem,phase operators,and phase-difference operators[J].Y.Math.Phys.,1998,39(10):5260-5267. |
| [15] | Pegg D T,Barnett S M.Phase properties of the quantized single-mode electromagnetic field[J].Phys.Rev.A,1989,39(4):1665-1675. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%