Experimental study of quantum random number generator based on two independent lasers
arXiv:1712.01428 · doi:10.1103/PhysRevA.96.062314
Abstract
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 QRNG, due to its high rate, low cost and the feasibility of chip-scale integration. Here, we perform a comprehensive experimental study of phase-noise based QRNG with two independent lasers, each of which operates in either continuous-wave (CW) or pulsed mode. We implement QRNGs by operating the two lasers in three configurations, namely CW+CW, CW+pulsed and pulsed+pulsed, and demonstrate their tradeoffs, strengths and weaknesses.
arXiv comment7pages,6figures.It has been accepted by PRA
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- Advanced Laser Technology for Quantum Communications (Tutorial Review)
- Real-time inteferometric quantum random number generation on chip
- Randomness quantification of coherent detection
- Quantum Random Number Generation Based on Phase Reconstruction