Effect of Dissipative Environments on Atomic-State Quantum Teleportation

摘要

In the paper, taking the atomic EPR entanglement states as quantum channel, we investigate the fidelity of quantum teleportation of atomic state in thermal environment and vacuum reservoir by means of quantum theory of damping-density operator approach, and the average fidelities are calculated. the results show that the atomic quantum channel state vertical bar phi > = (1/root 2)(vertical bar 00 > + vertical bar 11 >) is more robust than vertical bar Phi > = (1/root 2)(vertical bar 01 > + vertical bar 10 >) in teleportation process when they are subject to the dissipative environments.