Fig. 4: Comparison between experiment and theory.
From: Quantum interference of currents in an atomtronic SQUID

The error bars in the plots represent the standard error. a Comparison of the measured and calculated values of Ω0/2π (calculation done using GPE). The three curves correspond to calibration scales of the atomtronic SQUID radius. b–d Critical atom number as a function of the rotation rates obtained with GPE simulation and DC SQUID theory, along with the measured data and the best fit. For b, the radius is 4.82 µm; for c, the radius is 3.85 µm; and for d, the radius is 2.891 µm.