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Physica Scripta

On the propagation of quantum correlations in a cavity quantum electrodynamics network

Raúl Coto, Miguel Orszag

Published Apr 1, 2014• 1 citation
Publisher

Abstract

In this paper we present the analysis of a quantum direct communication protocol. Based on the propagation of quantum correlations, we analyze a model of two chains of atoms inside cavities, joined by optical fibers, which can be used as a quantum commun
DOI
10.1088/0031-8949/2014/t160/014006

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Optical nanofibers provide a versatile platform for exploring strong light-matter interactions at the single-quantum level, a central goal of quantum optics. Their subwavelength diameter supports tightly confined guided modes with strong evanescent fields, enabling efficient coupling between photons and nearby atoms. By incorporating fiber Bragg gratings, nanofibers can form fully fiber-integrated high-finesse cavities, combining strong atom-photon coupling with efficient and low-loss optical input-output interfacing in the setting of cavity quantum electrodynamics (QED). In parallel, nanofiber systems naturally realize waveguide QED, where atoms interact strongly with propagating photons in a one-dimensional geometry. In this review, we introduce the underlying physical principles, summarize key experimental techniques and representative phenomena, and discuss prospects for applications in quantum information processing, quantum networks, and related quantum technologies.