Photon-photon interactions in Rydberg-atom arrays
- URL: http://arxiv.org/abs/2101.11375v3
- Date: Mon, 21 Mar 2022 22:45:52 GMT
- Title: Photon-photon interactions in Rydberg-atom arrays
- Authors: Lida Zhang, Valentin Walther, Klaus M{\o}lmer and Thomas Pohl
- Abstract summary: We investigate the interaction of weak light fields with two-dimensional lattices of atoms, in which two-photon coupling establishes conditions of electromagnetically induced transparency and excites high lying atomic Rydberg states.
Such strong photon-photon interactions in the absence of otherwise detrimental photon losses in Rydberg-EIT arrays opens up a promising approach for the generation and manipulation of quantum light, and the exploration of many-body phenomena with interacting photons.
- Score: 0.4129225533930965
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: We investigate the interaction of weak light fields with two-dimensional
lattices of atoms, in which two-photon coupling establishes conditions of
electromagnetically induced transparency and excites high lying atomic Rydberg
states. This system features different interactions that act on disparate
length scales, from zero-range defect scattering of atomic excitations and
finite-range dipole exchange interactions to long-range Rydberg-state
interactions that span the entire array. Analyzing their interplay, we identify
conditions that yield a nonlinear quantum mirror which coherently splits
incident fields into correlated photon-pairs in a single transverse mode, while
transmitting single photons unaffected. Such strong photon-photon interactions
in the absence of otherwise detrimental photon losses in Rydberg-EIT arrays
opens up a promising approach for the generation and manipulation of quantum
light, and the exploration of many-body phenomena with interacting photons.
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