Long-term transmission of entangled photons from single quantum dot over deployed fiber
arXiv:1807.10690 · doi:10.1038/s41598-019-40912-z
Abstract
Non-classical light sources based on a single quantum emitter are considered as core technology for multiple quantum network architectures. A large variety of sources has been developed, but the generated photons remained far from being utilized in established standard fiber networks. Here, we report a week-long transmission of polarization-entangled photons from a single InAs/GaAs quantum dot over a metropolitan network fiber. The emitted photons are in the telecommunication O-band, favored for fiber optical communication. We employ a polarization stabilization system overcoming changes of birefringence introduced by 18.23km of installed fiber. Stable transmission of polarization-encoded entanglement with a high fidelity of 91% is achieved, facilitating the operation of sub-Poissonian quantum light sources over existing fiber networks.
arXiv comment5 pages, 4 figures
References in corpus (22)
- Quantum Cryptography
- The Quantum Internet
- Quantum sensing
- Field test of quantum key distribution in the Tokyo QKD Network
- A Diamond Nanowire Single Photon Antenna
- Satellite-relayed intercontinental quantum network
- Distributed Quantum Computation over Noisy Channels
- Optical-fiber source of polarization-entangled photon pairs in the 1550nm telecom band
- Event-Ready Bell Test Using Entangled Atoms Simultaneously Closing Detection and Locality Loopholes
- Experimental Long-Distance Decoy-State Quantum Key Distribution Based On Polarization Encoding
- Distribution of time-bin qubits over 50 km of optical fiber
- Repeat-Until-Success Quantum Computing
- Proof-of-principle demonstration of measurement-device-independent quantum key distribution using polarization qubits
- Ultra-high bandwidth quantum secured data transmission
- Evolution of entanglement within classical light states
- Full polarization control for fiber optical quantum communication systems using polarization encoding
- Fully automated entanglement-based quantum cryptography system for telecom fiber networks
- Bright nanoscale source of deterministic entangled photon pairs violating Bell's inequality
- Universal growth scheme for entanglement-ready quantum dots
- Maintenance-free Operation of WDM Quantum Key Distribution System through a Field Fiber over 30 Days
- Quantum-dot based telecom-wavelength quantum relay
- Universal finestructure eraser for quantum dots
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- Quantum Light on Demand