Time-delayed Einstein-Podolsky-Rosen Entanglement between Single Photon and Collective Atomic Excitation
Michał Dąbrowski, Michal P. Parniak, Wojciech Wasilewski · Conference on Lasers and Electro-Optics · 2017
We create 12-dimensional entangled state exhibiting quantum correlations between photon and atomic ensemble in positions and momenta. This state allows us to demonstrate the original EPR paradox with an unprecedented delay time of 6 μs between the entanglement generation and detection.