Physically transient true random number generators based on paired threshold switches enabling monte carlo method applications - Dang, Bingjie; Sun, Jing; Teng Zhang; Wang, Saisai; Zhao, Mo; Liu, Keqin; Xu, Liying; Zhu, Jiadi; Cheng, Caidie; Bao, Lin; others (IEEE Electron Device Letters, 2019)