Improving the Successful Probability of Quantum Dense Coding Through Bit Flip Channels Using Auxiliary Particles

Abstract

In this paper, an effective proposal for quantum dense coding through bit flip channels is presented with the aid of auxiliary particles. The concrete implementation processes for our scheme are given by means of appropriate quantum circuits. Meanwhile, the whole successful probability of this proposed protocol is calculated in the different situations of the bit flip particle number. It has been demonstrated that the total successful probability of this modified proposal is higher than or at least equal to that of the typical scheme. This is an important advantage of this novel scheme. Moreover, the dense coding task can be performed with the successful probability of 100% at the cost of the introduction of auxiliary particles when the bit flip is occurred on no or only one particle. Furthermore, the channel capacity comparison is made between this proposed protocol and the typical scheme, and the physical realization possibility of this modified proposal is discussed based on the quantum circuits.