Exact quantum dynamics of a bosonic josephson junction

Kaspar Sakmann, Alexej I. Streltsov, Ofir E. Alon, Lorenz S. Cederbaum

Research output: Contribution to journalArticlepeer-review


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.

Original languageEnglish
Article number220601
JournalPhysical Review Letters
Issue number22
StatePublished - 23 Nov 2009
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (all)


Dive into the research topics of 'Exact quantum dynamics of a bosonic josephson junction'. Together they form a unique fingerprint.

Cite this