Hybrid Quantum System of a Nanofiber Mode Coupled to Two Chains of Optically Trapped Atoms

Abstract

A tapered optical nanofiber simultaneously used to trap and optically interface of cold atoms through evanescent fields constitutes a new and well controllable hybrid quantum system. The atoms are trapped in two parallel 1D optical lattices generated by suitable far blue and red detuned evanescent field modes very close to opposite sides of the nanofiber surface. Collective electronic excitations (excitons) of each of the optical lattices are resonantly coupled to the second lattice forming symmetric and antisymmetric common excitons. In contrast to the inverse cube dependence of the individual atomic dipole-dipole interaction, we analytically find an exponentially decaying coupling strength with distance between the lattices. The resulting symmetric (bright) excitons strongly interact with the resonant nanofiber photons to form fiber polaritons, which can be observed through linear optical spectra. For large enough wave vectors the polariton decay rate to free space is strongly reduced, which should render this system ideal for the realization of long range quantum communication between atomic ensembles.

arXiv comment9 pages, 9 figures

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Cited by in corpus (24)

• Atom-Light Interactions in Photonic Crystals
• Self-organization of atoms along a nanophotonic waveguide
• Trapped Atoms in One-Dimensional Photonic Crystals
• A state-insensitive, compensated nanofiber trap
• Nonlocality in many-body quantum systems detected with two-body correlators
• Selective protected state preparation of coupled dissipative quantum emitters
• Extraordinary subradiance with lossless excitation transfer in dipole-coupled nano-rings of quantum emitters
• Arrays of strongly-coupled atoms in a one-dimensional waveguide
• Emergence of correlated optics in one-dimensional waveguides for classical and quantum atomic gases
• Photon transport mediated by an atomic chain trapped along a photonic crystal waveguide
• Light induced crystallization of cold atoms in a thin 1D optical tube
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• Self-ordering and collective dynamics of transversely illuminated point-scatterers in a 1D trap
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• Light Scattering From an Atomic Array Trapped Near a One-Dimensional Nanoscale Waveguide: a Microscopic Approach
• Protected subspace Ramsey spectroscopy
• Collective Interactions in an Array of Atoms Coupled to a Nanophotonic Waveguide
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• Collective Light Emission of a Finite Size Atomic Chain
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• Tailored long range forces on polarizable particles by collective scattering of broadband radiation
• Single-photon transport in one-dimensional coupled-resonator waveguide with second order nonlinearity coupling to a nanocavity containing a two-level atom and Kerr nonlinearity
• Dark Bogolon-Excitons in a Linear Atomic Super-Lattice