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Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
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A topological quantum optics interface.

Sabyasachi Barik1,2, Aziz Karasahin3, Christopher Flower1,2

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This summary is machine-generated.

Researchers created robust quantum interfaces using topological photonic crystals. This enables chiral light emission, paving the way for protected quantum optics devices for simulation and sensing.

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Area of Science:

  • Quantum optics
  • Condensed matter physics
  • Photonics

Background:

  • Topology in optics offers disorder-resistant photonic devices.
  • Strong light-matter coupling in quantum topological photonics is underexplored.

Purpose of the Study:

  • To demonstrate a strong interface between single quantum emitters and topological photonic states.
  • To explore quantum phenomena in topological photonic systems.

Main Methods:

  • Fabrication of topological photonic crystals.
  • Creation of counterpropagating edge states at crystal boundaries.
  • Coupling single quantum emitters to these edge states.

Main Results:

  • Demonstration of chiral emission from quantum emitters into topological edge states.
  • Observation of robust edge states resistant to sharp bends.
  • Establishment of a strong light-matter interface in the quantum regime.

Conclusions:

  • The developed approach enables robust quantum interfaces with topological photonic states.
  • This work opens avenues for quantum optics devices with built-in protection.
  • Potential applications include quantum simulation and advanced sensing technologies.