  Spatial profiles of the pressure have been measured in atomic Fermi gases
with primarily 2D kinematics. The in-plane motion of the particles is confined
by a gaussian-shape potential. The two-component deeply-degenerate Fermi gases
are prepared at different values of the s-wave attraction. The pressure profile
is found using the force-balance equation, from the measured density profile
and the trapping potential. The pressure is compared to zero-temperature models
within the local density approximation. In the weakly-interacting regime, the
pressure lies above a Landau Fermi-liquid theory and below the ideal-Fermi-gas
model, whose prediction coincides with that of the Cooper-pair mean-field
theory. The values closest to the data are provided by the approach where the
mean-field of Cooper pairs is supplemented with fluctuations. In the regime of
strong interactions, in response to the increasing attraction, the pressure
shifts below this model reaching lower values calculated within Monte Carlo
methods. Comparison to models shows that interaction-induced departure from 2D
kinematics is either small or absent. In particular, comparison with a lattice
Monte Carlo suggests that kinematics is 2D in the strongly-interacting regime.

Quantum Gases