Hybrid entanglement of light

NatPhot cover HR

We produced entanglement between differently-encoded photonic qubits. A single-photon-based qubit state on one side and a coherent-state-based one on the other.
The situation closely resembles the quantum-classical hybrid entanglement of the atom-cat system in the Schroedinger’s cat paradox.

Nature Photonics made a cover out of the story (and of our image).