基于六粒子簇态的量子信息分离方案

J4 ›› 2013, Vol. 30 ›› Issue (4): 455-460.

基于六粒子簇态的量子信息分离方案

侯奎

安徽建筑工业学院数理系，安徽合肥 230601

收稿日期:2012-08-13 修回日期:2012-10-23 出版日期:2013-07-28 发布日期:2013-07-06
通讯作者: 侯奎（1983-）安徽人，从事量子信息与量子计算方向研究和教学。 E-mail:hkui@aiai.edu.cn
基金资助:
安徽省高校省级优秀青年人才基金项目（2012SQRL136ZD），科学部主任基金（11147163），安徽省自然科学基金项目（1208085QA18）

A Quantum-information splitting scheme based on non-maximally six-qubit cluster state

HOU Kui

Department of Mathematics and Physics, Anhui University of Architecture, Hefei 230601,China

Received:2012-08-13 Revised:2012-10-23 Published:2013-07-28 Online:2013-07-06

摘要/Abstract

摘要： 利用非最大六粒子纠缠簇态作为量子信道，实现推广的任意二粒子量子态的信息分离方案。结果表明分离者可以让接收方中的任意一方在另一方的帮助下通过适当的幺正操作得到任意未知二粒子量子态。该方案中需要推广的BELL（GBM）基测量和单粒子测量(SM)，并通过引入辅助粒子寻找合适的纠缠匹配的方法实现概率量子信息分离。计算了量子信息分离（QIS）方案的成功概率和经典信息损耗，若量子信道为最大纠缠信道，方案成功的概率为1同时将消耗14bit的经典信息。

关键词: 量子光学, 量子信息分离, 多粒子簇态, 贝尔测量, 经典信息损耗

Abstract: A generalized tripartite scheme is proposed for splitting an arbitrary two-qubit state by utilizing six-qubit non-maximally cluster states as quantum channel. It is shown that the splitter averagely partitions its unknown two-qubit state between two agents and either agent can recover the unknown state with the other agent’s assistance via appropriate unitary operation. A generalized Bell state measurement (GBM) and a single-particle measurement (SM) are needed in our scheme. In order to obtain the original state, we introduces an auxiliary particle and Select a suitable entangled match. The probability of the successful Quantum-information splitting(QIS) and classical communication cost are worked out, If the quantum channel consists of maximally state, the classical information will consume 14 bits , and the total probability of QIS will equal 1.

Key words: quantum optics, quantum-information splitting, multipartite cluster states, Bell measurement, classical communication cost

中图分类号:

O431.2

侯奎. 基于六粒子簇态的量子信息分离方案[J]. J4, 2013, 30(4): 455-460.

HOU Kui. A Quantum-information splitting scheme based on non-maximally six-qubit cluster state[J]. J4, 2013, 30(4): 455-460.

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