Statistical model for a quantum noiseless subsystem

OPTICS COMMUNICATIONS

卷:284

Article

do Nascimento, Jose Claudio¹  Mateus, Paulo² 

[1] Univ Fed Ceara, Dept Teleinformat Engn, BR-60455760 Sobral Ce, Brazil

[2] Univ Tecn Lisboa, IST, Dept Math, Inst Telecomunicacoes,SQIG, Lisbon, Portugal

关键词: Quantum error correction;    Degree of polarization;    Quantum information;    Optical system;    Noiseless subsystem;   

DOI  :  10.1016/j.optcom.2010.10.080

来源: Elsevier

【 摘 要 】

One of the most promising physical properties for implementing quantum technology is light polarization. However, since light polarization is fragile, it is crucial to use quantum error correction in order to make quantum information over optical networks feasible. This paper performs a statistical analysis of a noiseless subsystem technique to correct errors on quantum information sent through light polarization. We discuss the performance of the noiseless subsystem scheme in a noisy channel using a two-dimensional random walk to represent the channel variation. Finally, we propose an expression to measure the efficiency of the analyzed setup using the degree of depolarization of the light. (C) 2010 Elsevier B.V. All rights reserved.

【 授权许可】

Free