Error self-correction in the tri-node indirect teleportation of a qutrit state with two partially entangled qutrit states
School of Physics & Material Science, Anhui
2 Department of Physics, Shaoguan University, Shaoguan 512005, P.R. China
a e-mail: firstname.lastname@example.org
Received in final form: 8 March 2011
Published online: 2 August 2011
Teleportation of a qutrit state with two different non-maximally entangled qutrit states as quantum channels linking three nodes of an intending quantum network is studied via an ancilla method. With this method a global accumulation approach (GAA) different from the usual node progression approach (NPA) is proposed. Comparisons between two approaches from the four aspects of quantum resource consumption, operation complexity, success probability and efficiency indicate that the GAA is much better than the NPA overall. The average fidelities in both methods are calculated and compared, it is shown that the average fidelity in the GAA is higher than that in the NPA. The error self-correction in the GAA is confirmed and its efficiency relative to the channel-state coefficients is explicitly given.
© EDP Sciences, Società Italiana di Fisica and Springer-Verlag 2011