  We propose a superradiant metrology technique to achieve the Heisenberg limit
super-resolving displacement measurement by encoding multiple light momenta
into a three-level atomic ensemble. We use $2N$ coherent pulses to prepare a
single excitation superradiant state in a superposition of two timed Dicke
states that are $4N$ light momenta apart in momentum space. The phase
difference between these two states induced by a uniform displacement of the
atomic ensemble has $1/4N$ sensitivity. Experiments are proposed in crystals
and in ultracold atoms.
