Experimental quantum teleportation of propagating microwaves
Kirill G. Fedorov, Michael Renger, Stefan Pogorzalek, Roberto Di Candia, Qiming Chen, Yuki Nojiri, K. Inomata, Yasunobu Nakamura, Matti Partanen, Achim Marx, Rudolf Groß, Frank Deppe · Science Advances · 2021
= 0.689 ± 0.004, exceeding the asymptotic no-cloning threshold. Thus, the quantum nature of the teleported states is preserved, opening the avenue toward unconditional security in microwave quantum communication.