Enhancing stimulated Raman excitation and two-photon absorption by entangled light
Anatoly A. Svidzinsky, Girish Saran Agarwal, Anton Classen, Alexei V. Sokolov, Aleksei M. Zheltikov, Muhammad Suhail Zubairy, Marlan O. Scully · Conference on Lasers and Electro-Optics · 2022
We find that stimulated Raman excitation of an atom by a two-photon pulse can be enhanced by orders of magnitude if the photons are simultaneously frequency correlated and spatially anti-correlated. That is correlated photon pair must have an inherent time delay between its constituent photons.