Fig. 1
From: Integration of multiple coinflip devices for high-quality random sampling
(a) P(H) measured empirically over 10,000 flips vs. the amplitude of the current pulse through the TD at room temperature. Error bars here represent the standard deviation over 100 trials, which are notably wider near 0.5. (b) Peak tunnel current of a TD vs. the ambient temperature. (c) Our system for stimulating TDs and detecting stochastic results. \(V_{EN}\) enables the current mirror, which drives a \(I_{REF}\) through the load and reflects it through the tunnel diode. \(V_{TD}\) is compared to \(V_{TH}\) to digitize the result into a 1 or 0. (d) P(H) for a single TD while the control loop is on (green) and after it is turned off (magenta). P(H) begins to drift before maxing out at 1.
