Fig. 4: Measurement of engine efficiency and test of the generalized integral fluctuation theorem.
From: Efficiency fluctuations and noise induced refrigerator-to-heater transition in information engines
a The information utilization efficiency, \(\bar \eta \equiv \left\langle { - \beta W} \right\rangle /\left\langle I \right\rangle\), as a function of N/S and τ/τR. Solid circles are experimentally obtained \(\bar \eta\) for τ = 20 (black circles), 3 (blue) and 0.5 (green) ms. The solid curves are plot of the model (the ratio of Eqs. (2) and (4)). b Contour plot of 〈exp(−βW–ΔI)〉 as a function of N/S and τ/τR using Eq. (6). The solid circles are the experimental plot of 〈exp(−βW–ΔI)〉 as a function of N/S for τ = 20 (black circles), 3 (blue circles), and 0.5 (green circles) ms. The solid curves are obtained by plotting Eq. (6).
