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Super-Coulombic atom-atom interactions in hyperbolic media.

Cristian L Cortes1,2, Zubin Jacob1,2

  • 1Department of Electrical and Computer Engineering, University of Alberta, Edmonton, Alberta, Canada T6G 2V4.

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|January 26, 2017
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Researchers discovered a new long-range quantum interaction, termed super-Coulombic interaction, in hyperbolic materials. This interaction significantly enhances atom-atom coupling, opening new avenues for quantum physics research.

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Area of Science:

  • Quantum Electrodynamics
  • Condensed Matter Physics
  • Materials Science

Background:

  • Dipole-dipole interactions typically operate within the near-field, limiting their range.
  • Phenomena like cooperative Lamb shifts and Van der Waals forces are governed by these near-field interactions.

Purpose of the Study:

  • To reveal and characterize novel long-range quantum electrodynamic interactions in hyperbolic media.
  • To investigate the phenomenon of super-Coulombic interaction and its enhancement of atom-atom coupling.

Main Methods:

  • Theoretical investigation of real- and virtual-photon interactions in hyperbolic media.
  • Analysis of the singularity in dipole-dipole coupling leading to super-Coulombic interaction.
  • Exploration of atom-atom interactions across the landscape of hyperbolic media.

Main Results:

  • Discovery of a singularity in dipole-dipole coupling in hyperbolic media, termed super-Coulombic interaction.
  • Demonstration of giant long-range enhancement of atom-atom interactions.
  • Identification of an effective interaction distance approaching zero, irrespective of physical distance.

Conclusions:

  • The study reveals a new class of long-range quantum interactions with potential applications in controlling cold atoms.
  • Proposed experimental platforms include phonon-polaritonic hexagonal boron nitride, plasmonic super-lattices, and hyperbolic meta-surfaces.
  • This work facilitates the study of many-body physics within hyperbolic media.