Photon control and coherent interactions via lattice dark states in atomic arrays

Abstract

Ordered atomic arrays with subwavelength spacing have emerged as an efficient and versatile light-matter interface, where emitters respond collectively and form subradiant lattice modes with supressed decay rate. Here, we demonstrate that such lattice dark states can be individually addressed and manipulated by applying a spatial modulation of the atomic detuning. More specifically, we show that lattice dark states can be used to store and retrieve single photons with near-unit efficiency, as well as to control the temporal, frequency and spatial degrees of freedom of the emitted electromagnetic field. Additionally, we discuss how to engineer arbitrary coherent interactions between multiple dark states. These results pave the way towards building a quantum platform that can equally act as a quantum memory and a photon shaper capable of producing states of light relevant in quantum information protocols.

This version agrees with the published version. It contains an extra Appendix, as well as an extended introduction and an extended discussion on the memory performance of the array

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• Non-Hermitian Waveguide Cavity QED with Tunable Atomic Mirrors
• Optimized geometries for cooperative photon storage in an impurity coupled to a two-dimensional atomic array
• Cooperative subwavelength molecular quantum emitter arrays
• Strongly interacting photons in 2D waveguide QED
• Unidirectional absorption, storage, and emission of single photons in a collectively responding bilayer atomic array
• Many-body radiative decay in strongly interacting Rydberg ensembles
• Quantum computing with subwavelength atomic arrays
• Dispersionless subradiant photon storage in one-dimensional emitter chains
• Deterministic generation of photonic entangled states using decoherence-free subspaces
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• Modifying cooperative decay via disorder in atom arrays
• Spatial averaging for light reflection and transmission through cold atom arrays
• Spontaneous Emission in the presence of Quantum Mirrors
• Collectively enhanced ground-state cooling in subwavelength atomic arrays
• Effects of finite trapping on the decay, recoil, and decoherence of dark states of quantum emitter arrays
• Propagation of light in cold emitter ensembles with quantum position correlations due to static long-range dipolar interactions
• Casimir-Polder potential on an excited atom near an atomic array
• Directional quantum scattering transducer in cooperative Rydberg metasurfaces
• Metalens formed by structured arrays of atomic emitters