Optimizing number squeezing when splitting a mesoscopic condensate

Details Optimizing number squeezing when splitting a mesoscopic condensate Optimizing number squeezing when splitting a mesoscopic condensate

2008-06-24

arxiv.org/abs/0806.3877v3

Phys. Rev. A 79, 021603(R) (2009)

Physics

Condensed Matter

Other Condensed Matter

4 pages, v3: minor changes

Scientific paper

10.1103/PhysRevA.79.021603

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.

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