Incompressible states of a two-component Fermi gas in a double-well optical lattice
arXiv:1006.1269 · doi:10.1103/PhysRevA.82.013613
Abstract
We propose a scheme to investigate the effect of frustration on the magnetic phase transitions of cold atoms confined in an optical lattice. We also demonstrate how to get two-leg spin ladders with frustrated spin-exchange coupling which display a phase transition from a spin liquid to a fully incompressible state. Various experimental quantities are further analyzed for describing this phase.
arXiv comment10 pages, 7 figures. Published in Phys. Rev. A
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