Sequential Projective Measurements for Channel Decoding

被引：34

作者：

Lloyd, Seth ^{[1
]}

Giovannetti, Vittorio ^{[2
,3
]}

Maccone, Lorenzo ^{[4
]}

机构：

[1] MIT, Dept Mech Engn, Cambridge, MA 02139 USA

[2] Scuola Normale Super Pisa, NEST, I-56126 Pisa, Italy

[3] CNR, Ist Nanosci, I-56126 Pisa, Italy

[4] Univ Pavia, Dipartimento Fis A Volta, Ist Nazl Fis Nucl, Sez Pavia, I-27100 Pavia, Italy

来源：

PHYSICAL REVIEW LETTERS | 2011年 / 106卷 / 25期

关键词：

CLASSICAL INFORMATION CAPACITY; QUANTUM CHANNEL; STRONG CONVERSE; CODING THEOREM; STATES; ENTANGLEMENT;

D O I：

10.1103/PhysRevLett.106.250501

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study the transmission of classical information in quantum channels. We present a decoding procedure that is very simple but still achieves the channel capacity. It is used to give an alternative straightforward proof that the classical capacity is given by the regularized Holevo bound. This procedure uses only projective measurements and is based on successive "yes-no" tests only.

引用

页数：4

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