Extended Data Fig. 4: Density distribution after ballistic expansion and n(k, Δω) of the unitary Fermi gas at 0.77Tc.
From: Observation and quantification of the pseudogap in unitary Fermi gases
a, The azimuthally averaged 2D density distribution after 5 ms ballistic expansion at Δω = 2π × 35 kHz. The inset displays the average result of n2D(x, y) of approximately 100 raw images. b, The 3D reconstructed distribution n3D(r), obtained by performing an inverse Abel transform to the n2D(r) in a. c, Momentum-resolved microwave spectrum n(k, Δω). d, Plot of n(k, Δω) in a logarithmic scale. The blue dashed line denotes the cutoff contour line.
