  We consider deformation of a generic $d$ dimensional ($d\geq 2$) large-$N$
CFT on a sphere by a spin-0 operator which is bilinear in the components of the
stress tensor. Such a deformation has been proposed to be holographically dual
to an $AdS_{d+1}$ bulk with a hard radial cut-off. We compute the exact
partition function and find the entanglement entropy from the field theory side
in various dimensions and compare with the corresponding holographic results.
We also compute renormalized entanglement entropy both in field theory and
holography and find complete agreement between them.
