One-sided device-independent random number generation through fiber channels
Author Information
Author(s): Zhang Jinfang, Li Yi, Zhao Mengyu, Han Dongmei, Liu Jun, Wang Meihong, Gong Qihuang, Xiang Yu, He Qiongyi, Su Xiaolong
Primary Institution: Peking University
Hypothesis
Can quantum steering be used to certify randomness without trusting the device of one party?
Conclusion
The study successfully demonstrates the first realization of steering-based random number extraction in a practical fiber channel.
Supporting Evidence
- Quantum random numbers were generated at a rate of 7.06 Mbits/s.
- The study verified the steerability from Bob to Alice, ensuring the success of the protocol.
- The randomness certification was achieved without trusting the remote user's device.
Takeaway
This study shows how to create random numbers using quantum mechanics without needing to trust one of the devices involved, making it safer for things like online security.
Methodology
The researchers distributed quantum steering over a 2 km fiber channel and extracted quantum random numbers after certifying randomness.
Limitations
The randomness certification may decrease with increased transmission distance due to channel loss.
Digital Object Identifier (DOI)
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