Collective emission of photons from dense, dipole-dipole interacting atomic ensembles

Abstract

We study the collective radiation properties of cold, trapped ensembles of atoms. We consider the high density regime with the mean interatomic distance being comparable to, or smaller than, the wavelength of the resonant optical radiation emitted by the atoms. We find that the emission rate of a photon from an excited atomic ensemble is strongly enhanced for an elongated cloud. We analyze collective single-excitation eigenstates of the atomic ensemble and find that the absorption/emission spectrum is broadened and shifted to lower frequencies as compared to the non-interacting (low density) or single atom spectrum. We also analyze the spatial and temporal profile of the emitted radiation. Finally, we explore how to efficiently excite the collective super-radiant states of the atomic ensemble from a long-lived storage state in order to implement matter-light interfaces for quantum computation and communication applications.

close to the published version

References in corpus (13)

• The Quantum Internet
• Photonic quantum technologies
• Quantum technologies with hybrid systems
• Cooperative resonances in light scattering from two-dimensional atomic arrays
• Storing light with subradiant correlations in arrays of atoms
• Dynamical evolution of correlated spontaneous emission of a single photon from a uniformly excited cloud of N atoms
• Subradiant Bell states in distant atomic arrays
• Cooperative Spontaneous Emission as a Many Body Eigenvalue Problem
• Collective shift in resonant light scattering by a one-dimensional atomic chain
• Transmission of near-resonant light through a dense slab of cold atoms
• Single-Photon Superradiance in Cold Atoms
• Microwave-to-optical conversion via four-wave-mixing in a cold ytterbium ensemble
• Microwave to optical conversion with atoms on a superconducting chip

Cited by in corpus (5)

• Dispersionless subradiant photon storage in one-dimensional emitter chains
• Photon statistics of the light transmitted and reflected by a two-dimensional atomic array
• Optimal collection of radiation emitted by a trapped atomic ensemble
• Condensation of vanishing photon emission rates in random atomic clouds
• Waveguide quantum electrodynamics at the onset of spin-spin correlations