  We analyze the residual gauge freedom in gravity, in four dimensions, in the
light-cone gauge, in a formulation where unphysical fields are integrated out.
By checking the invariance of the light-cone Hamiltonian, we obtain a set of
residual gauge transformations, which satisfy the BMS algebra realized on the
two physical fields in the theory. Hence, the BMS algebra appears as a
consequence of residual gauge invariance in the bulk and not just at the
asymptotic boundary. We highlight the key features of the light-cone BMS
algebra and discuss its connection with the quadratic form structure of the
Hamiltonian.

High Energy Physics - Theory