Quantum superdense coding based on hyperentanglement

被引：8

作者：

Zhao Rui-Tong ^{[1
]}

Guo Qi ^{[1
]}

Chen Li ^{[2
]}

Wang Hong-Fu ^{[1
]}

Zhang Shou ^{[1
]}

机构：

[1] Yanbian Univ, Coll Sci, Dept Phys, Yanji 133002, Peoples R China

[2] Harbin Inst Technol, Dept Phys, Ctr Condensed Matter Sci & Technol, Harbin 150001, Peoples R China

来源：

CHINESE PHYSICS B | 2012年 / 21卷 / 08期

基金：

中国国家自然科学基金;

关键词：

quantum superdense coding; hyperentangled state; Bell-state analysis; ENTANGLED STATES; KEY DISTRIBUTION; COMMUNICATION; PROTOCOL; ATOM;

D O I：

10.1088/1674-1056/21/8/080303

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present a scheme for quantum superdense coding with hyperentanglement, in which the sender can transfer four bits of classical information by sending only one photon. The important device in the scheme is the hyperentangled Bell-state analyzer in both polarization and frequency degrees of freedom, which is also constructed in the paper by using a quantum nondemolition detector assisted by cross-Kerr nonlinearity. Our scheme can transfer more information with less resources than the existing schemes and is nearly deterministic and nondestructive.

引用

页数：5

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