Extended Data Fig. 1: Pair momentum distributions in the vicinity of the superfluid phase transition.
From: Observation and quantification of the pseudogap in unitary Fermi gases
After ballistic expansion for one quarter of the radial trap period, the one-dimensional momentum distribution n1D(k) maps out the original pair momentum distribution of a unitary Fermi gas before the interaction quench30. Each data point corresponds to the average of approximately 15 individual measurements. In the subplot, we show log(n1D(k)) as a function of k2 at low momentum. The solid lines are the Boltzmann distribution fitting to the thermal wings. Pair condensation is clearly observed for T ≤ Tc.
