Coherent matter waves emerging from Mott-insulators

K. Rodriguez, S. R. Manmana, M. Rigol, R. M. Noack, A. Muramatsu

Research output: Contribution to journalReview article

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Abstract

We study the formation of (quasi-) coherent matter waves emerging from a Mott insulator for strongly interacting bosons on a one-dimensional lattice. It has been shown previously that a quasi-condensate emerges at momentum k cond = π/2a, where a is the lattice constant, in the limit of infinitely strong repulsion (hard-core bosons). Here, we show that this phenomenon persists for all values of the repulsive interaction that lead to a Mott insulator at a commensurate filling. The non-equilibrium dynamics of hard-core bosons is treated exactly by means of a Jordan-Wigner transformation, and the generic case is studied using a time-dependent density matrix renormalization group technique. Different methods for controlling the emerging matter wave are discussed.

Original languageEnglish (US)
Article number169
JournalNew Journal of Physics
Volume8
DOIs
StatePublished - Aug 30 2006

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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