Implementing 1 →Meconomical phase-covariant cloning and telecloning in cavity QED
Fanyu Meng, Ai‐Dong Zhu, Kyu-Hwang Yeon, Seong‐Cho Yu · Journal of Physics B Atomic Molecular and Optical Physics · 2009
We propose a scheme to implement 1 → M economical phase-covariant quantum cloning by using N three-level atoms nonresonantly interacting with a cavity assisted by a classical laser field. Using this interaction 1 → M telecloning is also implemented by applying the maximal entangled W state and partial entangled W state as the quantum channel, respectively. It is pointed out by analysing the fidelities and success probabilities that a relatively high fidelity and success probability can be obtained by choosing an appropriate channel in terms of the pre-known information of the input state.