Phys. Rev. Lett. 103, 220601 (2009) [4 pages]Exact Quantum Dynamics of a Bosonic Josephson JunctionReceived 6 May 2009; revised 21 October 2009; published 23 November 2009 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. © 2009 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.103.220601
DOI:
10.1103/PhysRevLett.103.220601
PACS:
05.60.Gg, 03.65.−w, 03.75.Kk, 03.75.Lm
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