The influence of imprecise quantum measurement on quantum dense coding

Abstract

In this paper, the influence of imprecise quantum measurement on quantum dense coding would be analysed. The realization processes of dense coding under the condition of imprecise measurement are given in detail. The performance of dense coding is analysed from the successful probability and average classical information. The successful probability and the classical information are immune to the phase parameter error of quantum measurement. However, with the increase of amplitude factor error, both probability and classical information will decrease. The results of this paper would be useful in the field of quantum communication.