The generation of the narrowband strong-correlated biphotons via spontaneous four-wave mixing can be effectively controlled and enhanced by an additional driving field which drives a transition with its upper level being a Rydberg state. We study the properties of the noise of the generated biphotons and show that in the region of weak pumping and low atomic density, a high degree of the photon correlation is maintained with the photon-pair generation rate siginificantly enhanced.
@article{arxiv.2402.12894,
title = {Enhanced photon-pair generation under coherent control},
author = {Ke-Shuang Cui and Xiao-Jun Zhang and Jin-Hui Wu},
journal= {arXiv preprint arXiv:2402.12894},
year = {2024}
}