Exact quantum dynamics of a bosonic Josephson junction.

  title={Exact quantum dynamics of a bosonic Josephson junction.},
  author={Kaspar Sakmann and Alexej I. Streltsov and Ofir E. Alon and Lorenz S. Cederbaum},
  journal={Physical review letters},
  volume={103 22},
The quantum dynamics of a one-dimensional bosonic Josephson junction is studied by solving the time-dependent many-boson Schrödinger equation numerically exactly. Already for weak interparticle interactions and on short time scales, the commonly employed mean-field and many-body methods are found to deviate substantially from the exact dynamics. The system exhibits rich many-body dynamics such as enhanced tunneling and a novel equilibration phenomenon of the junction depending on the… CONTINUE READING