  The single-particle behavior in $d\geq 1$-dimensional Fermi gases with a
large number $N$ of species and strong short-range $s$-wave scattering is
discussed in the $2d$ 'tomographic' framework of a (pseudo)holographic
correspondence with a certain $3d$ gravity of the $AdS_3$ type. However, due to
the intrinsically topological nature of such a bulk theory its dynamics reduces
to a purely boundary one and so, akin to its $SYK/AdS_2$ counterpart, this
formal correspondence neither represents a genuine case of, nor endorses the
hypothetical generalized holographic duality.
