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关于量子酉信道的HSW容量的一个注记(英文)
Remark on the HSW Channel Capacityfor the Qubit Unital Channel
【摘要】 给出了量子酉信道的Holevo Schumacher Westermoreland(HSW )信道容量的一个较简单的计算公式 ,并且证明利用输入的纯态可以算出这个信道的信道容量 .
【Abstract】 The Holevo-Schumacher-Westermoreland (HSW) channel capacity for the qudit unital channels was considered. A simpler formula for computing HSW channel capacity was given. And the HSW channel capacity can be determined by using only pure states. This result simplifies the computation of HSW channel capacity for the qudit unital channel.
【关键词】 HSW信道容量;
幺信道;
von Neumann熵;
【Key words】 HSW channel capacity; Unital channel; von Neumann entropy;
【Key words】 HSW channel capacity; Unital channel; von Neumann entropy;
【基金】 NationalFundamentalResearchProgram(2 0 0 1CB30 930 0 ) ,NationalNaturalScienceFoundationofChina (10 2 0 4 0 2 0 ) ,theInnovationfundsfromtheChineseAcademyofSciences,andalsobytheoutstandingPh .DthesisawardandtheCASstalentedscientistawardentitledtoLum
- 【文献出处】 中国科学技术大学学报 ,Journal of University of Science and Technology of China , 编辑部邮箱 ,2004年04期
- 【分类号】O431.2
- 【下载频次】50