Coherent control of mesoscopic superpositions in a diatomic molecule

Details Coherent control of mesoscopic superpositions in a diatomic molecule Coherent control of mesoscopic superpositions in a diatomic molecule

2011-11-22

arxiv.org/abs/1111.5112v1

Physics

Quantum Physics

9 pages, 3 figures, Accepted in Int. J. Quantum Information

Scientific paper

A phase controlled wave packet, recently used in experiment of wave packet interferometry of a diatomic molecule, is investigated to obtain mesoscopic superposition structures, useful in quantum metrology. This analysis provides a new way of obtaining sub-Planck scale structures at smaller time scale of revival dynamics. We study a number of situations for delineating the smallest interference structures and their control by tailoring the relative phase between two subsidiary wave packets. We also find the most appropriate state, so far, for high precision parameter estimation in a system of diatomic molecule.

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