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Thomas Pohl

Coherent Photon Manipulation in Interacting Atomic Ensembles

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DOI

  • Callum R. Murray, Max Planck Inst Phys Komplexer Syst, Max Planck Society, Max Planck Inst Halbleiterlabor, Max Planck Society
  • ,
  • Thomas Pohl

Coupling photons to Rydberg excitations in a cold atomic gas yields unprecedentedly large optical nonlinearities at the level of individual light quanta. Here, the basic mechanism exploits the strong interactions between Rydberg atoms to block the formation of nearby dark-state polaritons. However, the dissipation associated with this mechanism ultimately limits the performance of many practical applications. In this work, we propose a new approach to strong photon interactions via a largely coherent mechanism at drastically suppressed photon losses. Rather than a polariton blockade, it is based on an interaction-induced conversion between distinct types of dark-state polaritons with different propagation characteristics. We outline a specific implementation of this approach and show that it permits us to turn a single photon into an effective mirror with a robust and continuously tunable reflection phase. We describe potential applications, including a detailed discussion of achievable operational fidelities.

Original languageEnglish
Article number031007
JournalPhysical Review X
Volume7
Issue3
Number of pages16
ISSN2160-3308
DOIs
Publication statusPublished - 13 Jul 2017

    Research areas

  • ELECTROMAGNETICALLY INDUCED TRANSPARENCY, QUANTUM NONLINEAR OPTICS, NANOPHOTONIC WAVE-GUIDE, SINGLE TRAPPED ATOM, LIGHT, TRANSISTOR, SWITCH, GAS, CRYSTALS, MOLECULE

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