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Springer eBooks

Exact Quantum Dynamics of a Bosonic Josephson Junction

Kaspar Sakmann

Published Jan 1, 2011• 14 citations
Publisher
DOI
10.1007/978-3-642-22866-7_6

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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 interaction, which is attributed to a quick loss of coherence.

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