Optimizing number squeezing when splitting a mesoscopic condensate
arXiv:0806.3877 · doi:10.1103/PhysRevA.79.021603
Abstract
We optimize number squeezing when splitting a mesoscopic Bose Einstein condensate. Applying optimal control theory to a realistic description of the condensate allowed us to identify a form of the splitting ramp which drastically outperforms the adiabatic splitting. The results can be interpreted in terms of a generic two-mode model mapped onto a parametric harmonic oscillator. This optimal route to squeezing paves the way to a much longer phase coherence and atom interferometry close to the Heisenberg limit.
4 pages, v3: minor changes
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