Generation of polarization-entangled photon pairs from two interacting quantum emitters
Adrián Juan-Delgado, G. Giedke, Javier Aizpurua, Rubén Esteban · Physical Review A · 2025
The authors rigorously show that interacting quantum emitters can be used to generate polarization-entangled photon pairs. It is sufficient that the emitters exhibit two-level system behavior and that their transition dipole moments are oriented perpendicular to each other, which could be achieved with, e.g., organic molecules, trapped ions, quantum dots, and diamond-color centers.