Protection of Telecloning Over Noisy Channels with Environment-Assisted Measurements and Weak Measurements

We propose a scheme for protecting and improving the fidelity of quantum telecloning over the amplitude damping (AD) channels. By using the environment-assisted measurements and weak measurement reversals (WMR), the entanglement of quantum channel among three separated participants can be recovered probabilistically. Particularly, when the strength of WMRs is equal to the damping rate of the AD channels, the fidelity of the telecloning can be restored to the maximum value with a certain successful probability.