Transport and entanglement generation in the Bose-Hubbard model

O. Romero-Isart, K. Eckert, C. Rodó, A. Sanpera

Research output: Contribution to journalArticleResearchpeer-review

13 Citations (Scopus)


We study entanglement generation via particle transport across a one-dimensional system described by the Bose-Hubbard Hamiltonian. We analyse how the competition between interactions and tunnelling affects transport properties and the creation of entanglement in the occupation number basis. Alternatively, we propose to use spatially delocalized quantum bits, where a quantum bit is defined by the presence of a particle either in a site or in the adjacent one. Our results can serve as guidance for future experiments to characterize entanglement of ultracold gases in one-dimensional optical lattices. © 2007 IOP Publishing Ltd.
Original languageEnglish
Article numberS11
Pages (from-to)8019-8031
JournalJournal of Physics A: Mathematical and Theoretical
Issue number28
Publication statusPublished - 13 Jul 2007


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