ar X iv : 1 40 3 . 36 47 v 1 [ qu an t - ph ] 1 4 M ar 2 01 4 Heisenberg Limit Superradiant Super - resolving Metrology
نویسنده
چکیده
We propose a superradiant metrology scheme to achieve 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 the momentum space. The phase difference between these two states induced by a uniform displacement of the atomic ensemble has 1/4N sensitivity. Experiments based on Ramsey interferometry are proposed in crystal and in ultracold atoms.
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تاریخ انتشار 2014