Necessary and sufficient conditions on n-qudit state for perfect teleportation of an arbitrary single qudit state

被引：3

作者：

Shang-Guan, Li-Ying ^{[1
,2
]}

Sun, Hong-Xiang ^{[2
]}

Wen, Qiao-Yan ^{[1
]}

Zhu, Fu-Chen ^{[3
]}

机构：

[1] Beijing Univ Posts & Telecommun, State Key Lab Networking & Switching Technol, Beijing 100876, Peoples R China

[2] Beijing Univ Posts & Telecommun, Sch Sci, Beijing 100876, Peoples R China

[3] Natl Lab Modern Commun, Chengdu 610041, Peoples R China

来源：

OPTICS COMMUNICATIONS | 2009年 / 282卷 / 24期

基金：

北京市自然科学基金; 中国博士后科学基金;

关键词：

Perfect teleportation; n-Qudit state; Necessary and sufficient conditions;

D O I：

10.1016/j.optcom.2009.09.015

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Firstly, we investigate the necessary and sufficient conditions that an entangled channel of n-qubits should satisfy to carry out perfect teleportation of an arbitrary single qubit state and dense coding. It is shown that the sender can transmit two classical bits of information by sending one qubit. Further, the case of high-dimension quantum state is also considered. Utilizing n-qudit state as quantum channel, it is proposed that the necessary and sufficient conditions are (d+2)(d-1)/2 in all to teleport an arbitrary single qudit state. The sender can transmit 2log(2)d classical bits of information to the receiver conditioned on the constraints. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：4823 / 4826

页数：4