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A topological quantum optics interface
Sabyasachi Barik1,2, Aziz Karasahin3, Christopher Flower1,2
1Department of Physics, University of Maryland, College Park, MD 20742, USA.
Science (New York, N.Y.)
|February 14, 2018
Summary
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.
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.
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