Modified dipole-dipole interaction and dissipation in an atomic ensemble near surfaces

Abstract

We study how the radiative properties of a dense ensemble of atoms can be modified when they are placed near or between metallic or dielectric surfaces. If the average separation between the atoms is comparable or smaller than the wavelength of the scattered photons, the coupling to the radiation field induces long-range coherent interactions based on the interatomic exchange of virtual photons. Moreover, the incoherent scattering of photons back to the electromagnetic field is known to be a many-body process, characterized by the appearance of superradiant and subradiant emission modes. By changing the radiation field properties, in this case by considering a layered medium where the atoms are near metallic or dielectric surfaces, these scattering properties can be dramatically modified. We perform a detailed study of these effects, with focus on experimentally relevant parameter regimes. We finish with a specific application in the context of quantum information storage, where the presence of a nearby surface is shown to increase the storage time of an atomic excitation that is transported across a one-dimensional chain.

arXiv comment15 pages, 13 figures

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• Quantum Atmospherics for Materials Diagnosis
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• Beating the House: Fast Simulation of Dissipative Quantum Systems with Ensemble Rank Truncation
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• Periodically Driven Open Quantum Systems: Spectral Properties and Non-Equilibrium Steady States
• Rigorous theory of thin-vapor-layer linear optical properties: The case of quenching of atomic polarization upon collisions of atoms with dielectric walls
• Non-Hermitian physics of levitated nanoparticle array
• Collective single-photon emission and energy transfer in thin-layer dielectric and plasmonic systems
• Modified dipole-dipole interactions in the presence of a nanophotonic waveguide
• Dipole-dipole Interactions Through a Lens
• Cooperative atomic emission from a line of atoms interacting with a resonant plane surface
• Thermodynamic perspective on quantum fluctuations
• Entanglement generation in weakly-driven arrays of multilevel atoms via dipolar interactions
• Collective emission and selective radiance in atomic clouds and arrays coupled to a microring resonator
• Reflection by two level system: phase singularities on the Poincaré hypersphere
• Casimir-Polder potential on an excited atom near an atomic array