Experimental study of a quantum random-number generator based on two independent lasers
Author(s)
Sun, Shi-Hai; Xu, Feihu![Thumbnail](/bitstream/handle/1721.1/112955/PhysRevA.96.062314.pdf.jpg?sequence=6&isAllowed=y)
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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.
Date issued
2017-12Department
Massachusetts Institute of Technology. Research Laboratory of ElectronicsJournal
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
ISSN
2469-9926
2469-9934