Experimental study of a quantum random-number generator based on two independent lasers
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PhysRevA.96.062314.pdf
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Author(s)
Sun, Shi-Hai
Xu, Feihu
Date Issued
December 2017
Journal
Physical Review A
Publisher
American Physical Society
Citation
Sun, Shi-Hai and Xu, Feihu. "Experimental study of a quantum random-number generator based on two independent lasers." Physical Review A 96, 6 (December 2017): 062314 © 2017 American Physical Society
Version
Final published version
Abstract
A quantum random-number generator (QRNG) can produce true randomness by utilizing the inherent probabilistic nature of quantum mechanics. Recently, the spontaneous-emission quantum phase noise of the laser has been widely deployed for quantum random-number generation, due to its high rate, its low cost, and the feasibility of chip-scale integration. Here, we perform a comprehensive experimental study of a phase-noise-based QRNG with two independent lasers, each of which operates in either continuous-wave (CW) or pulsed mode. We implement the QRNG by operating the two lasers in three configurations, namely, CW + CW, CW + pulsed, and pulsed + pulsed, and demonstrate their trade-offs, strengths, and weaknesses.
MIT Department
Massachusetts Institute of Technology. Research Laboratory of Electronics
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1103/PhysRevA.96.062314
