A superconducting detector that counts microwave photons up to two

10 Mar 2020 Sokolov Andrii M. Wilhelm Frank K.

We propose a detector of microwave photons which can distinguish the vacuum state, one-photon state, and the states with two or more photons. Its operation is based on the two-photon transition in a biased Josephson junction and detection occurs when it switches from a superconducting to a normal state... (read more)

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