| Probabilistic teleportation of a two-particle entangled state via a partially entangled pair |
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| 作者姓名： | CHEN Xiu-bo LIU Xin-yuan WEN Qiao-yan School of Science Beijing University of Posts and Telecommunications Beijing China State Key Laboratory of Integrated Services Network Xidian University Xi’an China ZHU Fu-chen National Laboratory for Modern Communications Chengdu China |
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| 作者单位： | CHEN Xiu-bo，LIU Xin-yuan，WEN Qiao-yan School of Science，Beijing University of Posts and Telecommunications，Beijing 100876，China State Key Laboratory of Integrated Services Network，Xidian University，Xi’an 710071，China ZHU Fu-chen National Laboratory for Modern Communications，Chengdu 610041，China |
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| 基金项目： | 国家自然科学基金;国家自然科学基金;教育部高等学校博士学科点专项科研基金 |
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| 摘 要： | 1 Introduction In the burgeoning field of quantum information theory, people have found many remarkable applications of quantum mechanics 1?4]. One of the striking nontrivial techniques in quantum information is the existence of the procedure called quan…
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| 收稿时间： | 6 September 2005 |
Probabilistic teleportation of a two-particle entangled state via a partially entangled pair |
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| CHEN Xiu-bo,LIU Xin-yuan,WEN Qiao-yan,ZHU Fu-chen.Probabilistic teleportation of a two-particle entangled state via a partially entangled pair[J].The Journal of China Universities of Posts and Telecommunications,2006,13(4):39-42. |
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| Authors: | CHEN Xiu-bo LIU Xin-yuan WEN Qiao-yan ZHU Fu-chen |
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| Affiliation: | 1. School of Science, Beijing University of Posts and Telecommunications, Beijing 100876, China;2. State Key Laboratory of Integrated Services Network, Xidian University, Xi''an 710071, China;3. National Laboratory for Modern Communications, Chengdu 610041, China |
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| Abstract: | A scheme for teleporting an unknown two-particle entangled state is proposed. In comparison with the recent protocol (Cola et al., Phys. Lett. A 337 (2005)), the entangled state as quantum channel required by this scheme is a single, partially entangled pair, which is much easier to prepare and maintain. Furthermore, a positive operator valued measure (POVM) is adopted and all kinds of transformations performed by sender and receiver are given in detail. It is shown that the probability of successful teleportation is twice the modulus square of the smaller Schmidt coefficient of the two-particle entangled state, and the fidelity can reach one. |
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| Keywords: | quantum teleportation partially entangled pair two-particle entangled state POVM |
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