Generating Two Continuous Entangled Microwave Beams Using a dc-Biased Josephson Junction
Generating Two Continuous Entangled Microwave Beams Using a dc-Biased Josephson Junction
We show experimentally that a dc-biased Josephson junction in series with two microwave resonators emits entangled beams of microwaves leaking out of the resonators. In the absence of a stationary phase reference for characterizing the entanglement of the outgoing beams, we measure second-order coherence functions to prove the entanglement. The …