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We consider two qubit teleportation via quantum channel affected by amplitudedamping noise. Addressing the same problem, X. Hu, Y. Gu, Q. Gong and G. Guo[Phys. Rev. A 81, 054302, (2010)] recently showed that in presence of noise,subjecting more qubits in quantum channel to amplitude damping can increase thefidelity of teleportation protocol. However, in this paper, by making someadjustments on quantum channel, we obtain teleportation fidelity which is evenhigher than one in the case of X. Hu et al. Moreover, our strategy is simplerthan quantum distillation and compared to using weak measurement, it isdeterministic. Furthermore, explicit analysis of fidelity is provided, we showthat in general, choosing appropriate quantum channel enhances the ability ofteleportation better and negates the fact that more amplitude damping noisemore quality.

Improving two - qubit state teleportation affected by amplitude damping noise based on choosing appropriate quantum channel