Transition from a two-dimensional superfluid to a one-dimensional mott insulator
2007 (English)In: Physical Review Letters, ISSN 0031-9007, Vol. 99, no 11, 110401-1-110401-5 p.Article in journal (Refereed) Published
A two-dimensional system of atoms in an anisotropic optical lattice is studied theoretically. If the system is finite in one direction, it is shown to exhibit a transition between a two-dimensional superfluid and a one-dimensional Mott insulating chain of superfluid tubes. Monte Carlo simulations are consistent with the expectation that the phase transition is of Kosterlitz-Thouless type. The effect of the transition on experimental time-of-flight images is discussed.
Place, publisher, year, edition, pages
2007. Vol. 99, no 11, 110401-1-110401-5 p.
OPTICAL LATTICES; ATOMS; MODEL
Condensed Matter Physics
IdentifiersURN: urn:nbn:se:kth:diva-6799DOI: 10.1103/PhyRevLett.99.110401ISI: 000249474700001ScopusID: 2-s2.0-34548803504OAI: oai:DiVA.org:kth-6799DiVA: diva2:11610
QC 201006282007-02-202007-02-202011-10-05Bibliographically approved