Manipulating photonic quantum states with long-range interactions
Abstract
We present a scheme for coherently manipulating quantum states of photons by incorporating multiple photonic modes in a system with long-range interactions. The presence of nonlocal photon-photon interactions destroys the energy or momentum matching conditions between distinct propagating polaritons, and consequently gives rise to blockaded effective coupling between the corresponding polaritons. Such a blockade mechanism protects the system from interaction-induced dissipations and enables highly tunable few-photon nonlinearities. Taking Rydberg atomic ensemble as an example, we illustrate several intriguing phenomena based on the proposed scheme, e.g., the deterministic generation of entangled photon pairs, the nonlinear beam splitting, as well as the establishment of a tunable dressed interaction between individual photons.
Keywords
Cite
@article{arxiv.1905.06867,
title = {Manipulating photonic quantum states with long-range interactions},
author = {Fan Yang and Yong-Chun Liu and Li You},
journal= {arXiv preprint arXiv:1905.06867},
year = {2019}
}
Comments
12 pages, 7 figures; accepted by Phys. Rev. A (https://journals.aps.org/pra/accepted/3207dYabHbd15562788742495523c7bccf59ce158)