XYZ Quantum Heisenberg Models with p-Orbital Bosons
2013 (English)In: Physical Review Letters, ISSN 0031-9007, Vol. 111, no 20, 205302- p.Article in journal (Refereed) Published
We demonstrate how the spin-1/2 XYZ quantum Heisenberg model can be realized with bosonic atoms loaded in the p band of an optical lattice in the Mott regime. The combination of Bose statistics and the symmetry of the p-orbital wave functions leads to a nonintegrable Heisenberg model with antiferro-magnetic couplings. Moreover, the sign and relative strength of the couplings characterizing the model are shown to be experimentally tunable. We display the rich phase diagram in the one-dimensional case and discuss finite size effects relevant for trapped systems. Finally, experimental issues related to preparation, manipulation, detection, and imperfections are considered.
Place, publisher, year, edition, pages
2013. Vol. 111, no 20, 205302- p.
Antiferromagnetic coupling, Bose statistics, Bosonic atoms, Finite size effect, Heisenberg models, Relative strength
IdentifiersURN: urn:nbn:se:kth:diva-138365DOI: 10.1103/PhysRevLett.111.205302ISI: 000327243600016ScopusID: 2-s2.0-84887511016OAI: oai:DiVA.org:kth-138365DiVA: diva2:681747
FunderSwedish Research Council
QC 201312202013-12-202013-12-192013-12-20Bibliographically approved