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Entangling microwaves with light
1Institute of Science and Technology Austria, am Campus 1, 3400 Klosterneuburg, Austria.
Science (New York, N.Y.)
|May 18, 2023
Summary
Scientists achieved quantum entanglement between microwave and optical fields. This breakthrough overcomes previous limitations, enabling new possibilities for hybrid quantum networks and superconducting quantum technologies.
Area of Science:
- Quantum physics
- Quantum information science
- Superconducting circuits
Background:
- Quantum entanglement is crucial for quantum technologies.
- Sharing entanglement between superconducting circuits and optical/atomic systems is challenging due to energy mismatches and noise.
Purpose of the Study:
- To create and verify entanglement between microwave and optical fields.
- To overcome the energy scale mismatch hindering hybrid quantum systems.
Main Methods:
- Utilized an optically pulsed superconducting electro-optical device.
- Operated within a millikelvin environment.
- Demonstrated continuous variable entanglement.
Main Results:
- Successfully generated and verified entanglement between microwave and optical fields.
- Showcased entanglement between propagating microwave and optical fields.
Conclusions:
- This work enables entanglement between superconducting circuits and telecom light.
- Opens avenues for modular, scalable, and verifiable hybrid quantum networks.
- Implications for advanced quantum sensing and cross-platform verification.
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