Capacity of quantum multiple access Gaussian channel
-
Published:2010
Issue:2
Volume:59
Page:771
-
ISSN:1000-3290
-
Container-title:Acta Physica Sinica
-
language:
-
Short-container-title:Acta Phys. Sin.
Author:
Zhao Sheng-Mei ,Liu Jing ,
Abstract
As its classical counterpart,quantum Gaussian noise is an important noise model in quantum information theory. The study of capacity of quantum Gaussian channel plays an important role in quantum communications. Based on the definition of quantum Gaussian state,the entropy of quantum Gaussian state,and Holevo bound theorem,the classical capacity of quantum Gaussian channel is given at first in the paper,where the classical capacity is defined as the capacity when only classical messages are transmitted through the quantum channel. Then,the classical capacities of quantum multiple access Gaussian channels are deduced according to the classical capacity theorem of multiple access quantum channels. For simplicity and generality,a multiple access quantum channel with two senders and one receiver is used for computation. The results can be generalized to the quantum channel with n senders and one receiver.
Publisher
Acta Physica Sinica, Chinese Physical Society and Institute of Physics, Chinese Academy of Sciences
Subject
General Physics and Astronomy
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献