Extended Data Fig. 1: Calibration of magnetic anti-trap potential from the atomic density distribution.
From: Transition from an atomic to a molecular Bose–Einstein condensate
a, Fit of the in situ atomic density profile for determination of the magnetic anti-trap frequencies ωx and ωy using equation (2). The top and right panels show line cuts of the 2D atomic density in the x and y directions, crossing at the centre of the anti-trap. We choose the region within the red dashed circle for fit and extraction of the equation of state. b, Equation of state of atomic BEC shown in a. Each data point represents averaged density within a bin size δμ/h = 0.25 Hz and error bars represent one standard deviation. The black solid line is a linear fit to the data, while the black dashed line is an extrapolation of the fit towards the origin. Data values and error bars are estimated as in Fig. 2 from 20 measurements.
