• Corpus ID: 220525519

Chaos-induced depletion of a Bose-Einstein condensate

@article{Wanzenbock2020ChaosinducedDO,
  title={Chaos-induced depletion of a Bose-Einstein condensate},
  author={Ralf Wanzenbock and Stefan Donsa and Harald Hofstatter and Othmar Koch and Peter Schlagheck and Iva Bvrezinov'a},
  journal={arXiv: Quantum Gases},
  year={2020}
}
The mean-field limit of a bosonic quantum many-body system is described by (mostly) non-linear equations of motion which may exhibit chaos very much in the spirit of classical particle chaos, i.e. by an exponential separation of trajectories in Hilbert space with a rate given by a positive Lyapunov exponent $\lambda$. The question now is whether $\lambda$ imprints itself onto measurable observables of the underlying quantum many-body system even at finite particle numbers. Using a Bose-Einstein… 

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