Fragmentation of Bose-Einstein condensates in multi-well three-dimensional traps

O. E. Alon, A. I. Streltsov, L. S. Cederbaum

Research output: Contribution to journalArticlepeer-review


The present Letter analyzes the ground-state of weakly-interacting cold bosonic atoms in three-dimensional (3D) multi-well traps. A physical repulsive pairwise interaction is considered. As the interparticle interaction is increased, fragmentation of condensates is established and discussed. Analogously, superfluid to Mott-insulator transitions are described by a continuum real-space approach. In a related context, we also discuss the fermionization of cold bosonic systems in and beyond 1D. Illustrative numerical examples for fragmentation in 3D and 2D and fermionization in 1D traps are provided.

Original languageEnglish
Pages (from-to)88-94
Number of pages7
JournalPhysics Letters, Section A: General, Atomic and Solid State Physics
Issue number1-3
StatePublished - 14 Nov 2005
Externally publishedYes

Bibliographical note

Funding Information:
We thank Markus Oberthaler and Jörg Schmiedmayer for helpful discussions and acknowledge partial support from the German–Israeli DIP project of the German Federal Ministry of Education and Research (BMBF).


  • Bose-Einstein condensation
  • Fermionization
  • Fragmentation

ASJC Scopus subject areas

  • Physics and Astronomy (all)


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