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Ana Asenjo-Garcia1, H J Kimble2, Darrick E Chang3,4

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Quantum emitters in arrays exhibit waveguiding, a quantum many-body effect arising from atomic entanglement. This study elucidates the conditions for waveguiding in systems with realistic atomic structures, advancing understanding of collective quantum phenomena.

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Area of Science:

  • Quantum optics
  • Condensed matter physics
  • Atomic physics

Background:

  • Subwavelength arrays of quantum emitters exhibit unique optical properties.
  • Previous models assumed simple atomic structures, limiting applicability to realistic systems.
  • Hyperfine structure in quantum emitters was not previously considered in waveguiding phenomena.

Purpose of the Study:

  • To investigate waveguiding in subwavelength atomic arrays with realistic hyperfine structure.
  • To determine if phenomena like topological edge states persist with complex atomic structures.
  • To understand the role of quantum entanglement in collective optical effects.

Main Methods:

  • Theoretical modeling of quantum emitters with hyperfine structure.
  • Analysis of light-matter interactions in periodic atomic arrays.
  • Quantum many-body calculations to explore entanglement effects.

Main Results:

  • Waveguiding emerges as a quantum many-body effect driven by atomic entanglement.
  • Conditions necessary for waveguiding in realistic atomic arrays are identified.
  • The study demonstrates the persistence of guided modes despite complex atomic structures.

Conclusions:

  • Collective effects in atomic arrays are significantly influenced by entanglement and hyperfine structure.
  • This work extends the understanding of optical phenomena in quantum emitter arrays.
  • The findings pave the way for designing advanced quantum devices with realistic atomic systems.