A two-mode coherent superposed state generated by operator A = t a b + r a† b† is shown to serve as an entangled channel that achieves CV teleportation fidelities exceeding the classical threshold in selected parameter regimes.
Chatterjee, Lower-versus higher-order n on- classicalities for a coherent superposed quantum state, Journal of the Optical Society of America B 38, 3212 (2021)
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Performance of a two-mode coherent superposed channel in continuous-variable quantum teleportation
A two-mode coherent superposed state generated by operator A = t a b + r a† b† is shown to serve as an entangled channel that achieves CV teleportation fidelities exceeding the classical threshold in selected parameter regimes.