Reproducible mesoscopic superpositions of Bose-Einstein condensates and mean-field chaos

  title={Reproducible mesoscopic superpositions of Bose-Einstein condensates and mean-field chaos},
  author={Bettina Gertjerenken and Stephan Arlinghaus and Niklas Teichmann and Christoph Weiss},
  journal={Physical Review A},
In a parameter regime for which the mean-field (Gross-Pitaevskii) dynamics becomes chaotic, mesoscopic quantum superpositions in phase space can occur in a double-well potential, which is shaken periodically. For experimentally realistic initial states, such as the ground state of some 100 atoms, the emergence of mesoscopic quantum superpositions in phase space is investigated numerically. It is shown to be reproducible, even if the initial conditions change slightly. Although the final state… 
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