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Updated: Jun 5, 2025
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A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
Published on: September 5, 2019
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Inverse-designed dielectric cloaks for entanglement generation
Alberto Miguel-Torcal1, Jaime Abad-Arredondo1, Francisco J García-Vidal1,2
1Departamento de Física Teórica de la Materia Condensada and Condensed Matter Physics Center (IFIMAC), Universidad Autónoma de Madrid, E-28049 Madrid, Spain.
Nanophotonics (Berlin, Germany)
|December 5, 2024
Summary
We engineered photonic environments to generate entanglement between quantum emitters. Our method maximizes interaction, creating strong entanglement surpassing free-space capabilities.
Area of Science:
- Quantum optics
- Quantum information science
- Nanophotonics
Background:
- Entanglement is crucial for quantum technologies.
- Controlling quantum emitter interactions is challenging.
- Photonic environments influence quantum correlations.
Purpose of the Study:
- To engineer photonic environments for enhanced quantum entanglement.
- To maximize dissipative coupling between two quantum emitters.
- To achieve high entanglement levels under diverse conditions.
Main Methods:
- Inverse-design engineering using topology optimization.
- Utilizing the electromagnetic Dyadic Green's function.
- Designing dielectric cloaks for tailored photonic environments.
Main Results:
- Generated dielectric cloaks for various emitter distances and pumping strengths.
- Maximized dissipative coupling, enhancing entanglement.
- Achieved steady-state concurrence significantly greater than in free space.
- Demonstrated entanglement approaching the maximum-entangled-mixed-states limit.
Conclusions:
- Inverse-design of photonic environments is effective for generating entanglement.
- The engineered structures provide strong quantum correlations.
- This approach offers a pathway to robust quantum information processing.
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