Entanglement swapping and testing quantum steering into the past via collective decay
Entanglement swapping and testing quantum steering into the past via collective decay
We propose a scheme to realize entanglement swapping via superradiance, entangling two distant cavities without a direct interaction. The successful Bell-state-measurement outcomes are performed naturally by the electromagnetic reservoir, and we show how, using a quantum trajectory method, the non-local properties of the state obtained after the swapping procedure can …