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Optimizing number squeezing when splitting a mesoscopic condensate

Julian Grond, Jörg Schmiedmayer, and Ulrich Hohenester
Phys. Rev. A 79, 021603(R) – Published 9 February 2009

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.

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  • Received 24 June 2008

DOI:https://doi.org/10.1103/PhysRevA.79.021603

©2009 American Physical Society

Authors & Affiliations

Julian Grond1, Jörg Schmiedmayer2, and Ulrich Hohenester1

  • 1Institut für Physik, Karl-Franzens-Universität Graz, Universitätsplatz 5, 8010 Graz, Austria
  • 2Atominstitut der Österreichischen Universitäten, TU-Wien, Stadionallee 2, 1020 Wien, Austria

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Issue

Vol. 79, Iss. 2 — February 2009

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