Precision gravimetry via harnessing interaction-induced resonances in optical lattices

• URL: http://arxiv.org/abs/2605.02872v2
• Date: Thu, 07 May 2026 06:32:27 GMT
• Title: Precision gravimetry via harnessing interaction-induced resonances in optical lattices
• Abstract summary: We analyze the quantum Fisher information to determine its scaling with respect to time, system size and particle number.<n>This precision enhancement can be employed in gravitational acceleration measurements with a finite number of particles trapped in optical lattices.
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• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: By confining a Bose-Einstein condensate in a vertical lattice subjected to a gravitational potential, we analyze the quantum Fisher information to determine its scaling with respect to time, system size and particle number. Our results reveal that in the localized phase, on-site interactions $U$ amplify the quantum Fisher information by a factor with respect to resonance condition $U=mh$ where $U$ is factor of gradient field amplitude $h$. This precision enhancement can be employed in gravitational acceleration measurements with a finite number of particles trapped in optical lattices.

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