Format

Send to

Choose Destination
Phys Rev Lett. 2002 Jan 28;88(4):047904. Epub 2002 Jan 11.

Quantum dense coding exploiting a bright Einstein-Podolsky-Rosen beam.

Author information

1
State Key Laboratory of Quantum Optics and Quantum Optics Devices, Taiyuan, China.

Abstract

Highly efficient quantum dense coding for continuous variables has been experimentally accomplished by means of exploiting a bright Einstein-Podolsky-Rosen (EPR) beam with anticorrelation of amplitude quadratures and correlation of phase quadratures. Two bits of classical information are encoded on two quadratures of a half of a bright EPR beam, then are simultaneously decoded by the other half of the EPR beam with the sensitivities beyond that of the shot noise limit. A high degree of immunity to unauthorized eavesdropping has been experimentally demonstrated.

Supplemental Content

Full text links

Icon for American Physical Society
Loading ...
Support Center