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The telecloning protocol distributes quantum states from a single sender tomultiple receivers via a shared entangled state by exploiting the notions ofteleportation and approximate cloning. We investigate the optimal telecloningfidelities obtained using both Gaussian and non-Gaussian shared resources. Whenthe shared non-Gaussian state is created by subtracting photons from both themodes of the Gaussian two-mode squeezed vacuum state, we demonstrate thathigher telecloning fidelities can be achieved in comparison with its Gaussiancounterpart. To quantify this advantage, we introduce a quadrature-basednonclassicality measure, which is capable of estimating the fidelity of theclones, both with Gaussian and non-Gaussian resource states. We further providea linear optical setup for asymmetric telecloning of continuous variables usinga multimode entangled state.

Nonclassical resource for continuous variable telecloning with non-Gaussian advantage