  We study cold fermionic atoms using the holographic principle. We note that
current atomic experiments with massive fermions trapped in a harmonic
potential in the unitarity limit behave as massless fermions thanks to the
Thomas-Fermi approximation. We map the thermodynamics of strongly correlated
massless fermion to that of the charged black hole and study the thermodynamics
and transport properties of cold fermions at strong coupling at finite
temperature and density. In cold limit, the specific heat of charged black hole
is linear in $T$ independent of the dimensionality, which is reminiscent of
Fermi liquids. The shear viscosity per particle is shown to be finite as a
consequence of the non-vanishing of the entropy. We show that our holographic
results compare favorably with most of the current atomic data.
