Figure 4

Teleportation fidelities
in Eq. (11) and
in Eq. (20) for ϕ = 0 and |g〉A.
(a) The orange curve shows that the classical teleportation fidelity cannot excess 1/2 for θ = π/2 with
while the fidelity of quantum teleportation is always 1. (b)
(blue surface) is always better than
with respect to α and θ. For example,
is approximately equal to the fidelity of classical DV teleportation given by
. (c) The last figure shows that the teleportation fidelity dramatically decreases when we take into account the self-Kerr distortion. The curves are fidelities of quantum cases with/without K = −66.7 kHz at t = 50 ns in Eq. (2) and the teleported state of α = 2.0 suffers more distortion due to the contribution of larger Fock states while the state with small α are more robust against self-Kerr effects.