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Exploiting Rydberg Atom Surface Phonon Polariton Coupling for Single Photon Subtraction

Research paper by H. Kübler, D. Booth, J. Sedlacek, P. Zabawa, J. P. Shaffer

Indexed on: 03 Sep '13Published on: 03 Sep '13Published in: Physics - Atomic Physics



Abstract

We investigate a hybrid quantum system that consists of a superatom coupled to a surface phonon-polariton. We apply this hybrid quantum system to subtract individual photons from a beam of light. Rydberg atom blockade is used to attain absorption of a single photon by an atomic microtrap. Surface phonon-polariton coupling to the superatom then triggers the transfer of the excitation to a storage state, a single Rydberg atom. The approach utilizes the interaction between a superatom and a Markovian bath that acts as a controlled decoherence mechanism to irreversibly project the superatom state into a single Rydberg atom state that can be read out.