[24p-12N-1~11] 11.5 Junction and circuit fabrication process, digital applications

1:30 PM - 1:45 PM JST(4:30 AM - 4:45 AM UTC)

[24p-12N-1] Improvement of Randomness of Outputs from Superconductor Random Number Generator Parallelized Without Individual Operating Point Control

〇Yuuki Yamanashi¹, Rikuto Kumakura¹, Nobuyuki Yoshikawa¹ (1.Yokohama Nat'l Univ.)

Keywords:

random number,single flux quantum circuit

The superconductor random number generator (SRNG) can generate unpredictable and true random numbers at speeds of greater than 30 Gbps. Parallelization of SRNGs requires individual adjustment of the operating points of each SRNG to the optimal point. We have proposed a method to parallelize the SRNGs without adjusting their operating points individually. However, it has a problem of deteriorating the randomness of the output random number sequences. In this presentation, we discuss a method to generate high-quality random numbers from parallelized SRNGs without individual adjustment of the operating points.