▎ 摘　　要

The teleportation of Werner state in the graphene-based quantum channels under the dephasingenvironment is studied through the effective low-energy theory in this paper. The results show that the outputentanglement normally reaches a higher level as the input entanglement increases, while the performance of thecorresponding fidelity is opposite. Given the input state, the greater entanglement in the quantum channel canprovide the higher-quality output state. For graphene-based quantum channels, the low temperature and weakCoulomb repulsive potential can decelerate the attenuation of entanglement resources in the dephasingenvironment. Moreover, when the temperature is lower than 40 K and the coulomb repulsive potential betweenelectrons is less than 6 eV, the average fidelity of the output state reaches more than 80%. These resultsindicate that graphene has potential applications in quantum information.