paper

Heisenberg Limit Superradiant Superresolving Metrology

arXiv:1403.3647 · doi:10.1103/PhysRevLett.113.083601

Abstract

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 coherent pulses to prepare a single excitation superradiant state in a superposition of two timed Dicke states that are light momenta apart in momentum space. The phase difference between these two states induced by a uniform displacement of the atomic ensemble has sensitivity. Experiments are proposed in crystals and in ultracold atoms.

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