Amplifying single impurities immersed in a gas of ultra cold atoms

Abstract

We present a method for amplifying a single or scattered impurities immersed in a background gas of ultra cold atoms so that they can be optically imaged and spatially resolved. Our approach relies on a Raman transfer between two stable atomic hyperfine states that is conditioned on the presence of an impurity atom. The amplification is based on the strong interaction among atoms excited to Rydberg states. We perform a detailed analytical study of the performance of the proposed scheme with particular emphasis on the influence of many-body effects.

5 pages, 4 figures

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• High-Precision Measurement of Rydberg State Hyperfine Splitting in a Room-Temperature Vapour Cell
• The Spectral Backbone of Excitation Transport in Ultra-Cold Rydberg Gases
• A hybrid model for Rydberg gases including exact two-body correlations
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• Finite-size effects in strongly interacting Rydberg gases
• Rydberg Aggregates
• Dipole-dipole interaction driven antiblockade of two Rydberg atoms
• Emergence of spatial spin-wave correlations in a cold atomic gas
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• Switching Exciton Pulses Through Conical Intersections
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• Dynamical phases in a one-dimensional chain of Heterospecies Rydberg atoms with next-nearest neighbor interactions
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• Superradiance-induced multistability in driven Rydberg lattice gases
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• Metastable decoherence-free subspaces and electromagnetically induced transparency in interacting many-body systems
• Radiation trapping in a dense cold Rydberg gas
• Few-body quantum physics with strongly interacting Rydberg polaritons
• Interaction-Enhanced Imaging of Rydberg P states
• Crystalline structures in a one-dimensional two-component lattice gas with $1/r^{\alpha }$ interactions
• Devil's staircases without particle-hole symmetry
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• Imaging a chain of strongly correlated Rydberg excitations enabled by Förster-resonance-enhanced interaction
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• Facilitation Induced Transparency and Single Photon Switch with Dual-Channel Rydberg Interactions
• Trapping and binding by dephasing
• Spatial imaging of the movement of bound atoms to reveal the Rydberg molecular bond via electromagnetically induced transparency